Sourced Precisely.
Delivered Reliably.

Jinheng Trading Company Limited is a Hong Kong-registered intermediary connecting global buyers with a curated network of certified investment casting manufacturers. From standard catalogue items to fully bespoke components — we manage sourcing, quality assurance and logistics as a single professional partner.

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Manufacturing Partners

12+ Certified Factories

Sample Catalogue

49 Standard Items

Materials Available

SS / Brass / Al / Zinc

Quality Standard

ISO 9001:2015 Network

Who We Are

A Professional Trading Intermediary
for Precision Cast Components

Established in Hong Kong, Jinheng Trading Company Limited operates as a specialist sourcing and trading partner for buyers requiring consistent, high-quality investment cast components at competitive international terms.

We do not operate our own manufacturing facility. Instead, we maintain long-standing commercial relationships with a network of more than twelve audited manufacturing partners located across the Pearl River Delta and Yangtze River regions of mainland China — each selected for their technical competency, certified quality systems and proven export track record.

This model gives our clients a distinct advantage: access to specialised casting capabilities, diverse material grades and a broad production capacity — all managed through a single, accountable Hong Kong trading entity with clear contractual terms, professional communication and export compliance expertise.

Our product scope spans architectural and interior hardware, furniture fittings, marine components, industrial machinery parts and decorative accessories. Whether clients require items from our standard catalogue or need components developed to proprietary drawings, Jinheng provides end-to-end procurement and quality oversight from order to delivery.

Operating from Hong Kong provides our clients with a stable, internationally recognised trade platform: simplified export procedures, established banking infrastructure for Letter of Credit and telegraphic transfer settlements, and straightforward access to HKSAR certificates of origin where applicable.

Our commercial team brings together expertise in investment casting technology, quality management and international trade logistics. We speak the language of both our manufacturing partners and our international clients — bridging technical requirements with commercial execution efficiently.

Samples from our standard range are available. For OEM or ODM development, we work from 2D drawings, 3D files (STEP, IGS, SolidWorks) or physical samples. Tooling ownership arrangements are available by negotiation.

Registered In

Hong Kong SAR

Trade Terms

FOB / CIF / EXW / DDP

Payment

TT / LC / DP

Languages

English / Cantonese / Mandarin

Sample Lead Time

2 – 3 Weeks

Production Lead Time

4 – 7 Weeks

What We Do

From Enquiry to Delivery

Every order follows a structured, managed process. Hover each stage for details.

Enquiry & Specification

Client submits product codes, drawings or sample requirements

Enquiries accepted by email or contact form. Provide product codes from our catalogue, 2D/3D drawings, or a physical sample. Specify material grade, surface finish, quantity and delivery terms required.

Sourcing & Quotation

Factory matching and competitive costing across partner network

We identify the most appropriate manufacturing partner for your component — balancing technical capability, material grade and capacity. Competitive quotes from multiple factories managed by Jinheng. Formal quotation issued within 2 business days.

Sample & Approval

First-article prototypes produced and approved before production

For new components or OEM development, first-article samples are produced and inspected against drawings. Dimensional report and surface review provided. Client approval confirmed before bulk production is released. Sample costs credited to first order.

Production

Batch manufacturing at certified partner facility

Production conducted at the approved ISO 9001:2015 certified partner factory. In-process quality checks maintained throughout. Production timeline updated to Jinheng; lead times typically 4–7 weeks from confirmed order, depending on complexity and quantity.

QC Inspection

Pre-shipment dimensional and visual inspection

All consignments subject to pre-shipment inspection coordinated by Jinheng. Dimensional verification, visual / surface review and random sampling conducted. Third-party inspection (SGS, BV, Intertek) available on request. Goods held until passed.

Export & Delivery

Full documentation and logistics to your door

Sea or air freight coordinated from Hong Kong or direct from factory. Full export documentation package: commercial invoice, packing list, bill of lading, certificate of origin, MTRs and any required import compliance certificates prepared to your LC or DAP/DDP terms.

Our Manufacturing Network

Certified Partner Factories

All items in the Jinheng catalogue — and all OEM components developed through us — are produced by manufacturing partners that hold the relevant quality, export and product certifications required for international trade.

ISO 9001:2015 Quality Management

Every manufacturing partner in our network is required to hold a current ISO 9001:2015 certification from an accredited certification body. This ensures a documented, auditable quality management system governs all production processes — from incoming material inspection through to finished goods release.

Export Licences & Compliance

Our partner facilities are registered manufacturers holding valid Chinese export licences issued by the competent authorities. Factories supplying product categories subject to specific regulatory approvals — including CE marking requirements and REACH / RoHS compliance for applicable markets — maintain the relevant documentation and test records.

Material Traceability

Raw material procurement at our partner factories is conducted from approved mills and smelters. Material test reports (MTR) confirming chemical composition and mechanical properties to ASTM, DIN or JIS standards are available for all standard grades, including stainless steel 304, 316 and 316L, and principal brass and aluminium alloys.

Regular Factory Audits

Jinheng conducts or commissions regular supplier audits covering quality management, production capability, workforce compliance and environmental standards. Partners that fail to maintain required standards are suspended from our active supply network. We introduce new manufacturing partners only following a formal qualification process.

Specialised Casting Capabilities

Our network covers a range of investment casting specialisms: fine-tolerance precision parts, large-format structural components, thin-wall castings, complex multi-surface geometry and high-polish decorative work. This breadth of capability allows us to source optimally for each individual order requirement rather than applying a one-size-fits-all approach.

Certifications Held by Partner Network

ISO 9001:2015

Quality Management System

CE Marking

For applicable product categories

REACH & RoHS

EU compliance for relevant markets

PRC Export Licence

Registered export manufacturers

Material Test Reports

ASTM / DIN / JIS standards

SGS / BV Inspectable

Third-party inspection accepted

Certification documentation for any specific factory or product category is available upon request as part of the commercial qualification process. Please contact us for details.

Sample Range

Product Catalogue

The following items represent standard components available from our manufacturing network. All specifications may be adjusted, and custom items are developed to your drawings.

Items shown are samples from our standard range. Dimensions indicate nominal sizes in centimetres. Material, surface finish and tolerance class are specified at order stage. Bulk stock availability varies — contact us for current lead times.

Browse the complete catalogue — 49 items →

How Your Components Are Made

The Investment Casting Process

Investment casting — the lost-wax process — produces precision near-net-shape components with complex geometry, tight tolerances and excellent surface finish. Every part in our catalogue and every custom component we source follows this proven process at our certified partner facilities.

Step 01

Die & Wax Pattern Injection

Molten wax is injected under pressure into a precision-machined metal die. Once cooled, the wax pattern replicates the final component in every dimension — this is the master form of your part.

Step 02

Wax Tree Assembly

Individual wax patterns are assembled onto a central wax sprue, forming a "tree." Multiple parts are clustered together for efficiency, reducing cost per piece for production runs.

Step 03

Ceramic Shell Building

The wax tree is repeatedly dipped in liquid ceramic slurry and coated with fine refractory sand. Seven to nine coats are applied, each dried thoroughly, building a hard ceramic shell around the wax.

Step 04

Dewaxing & Furnace Pre-heat

The ceramic shell is placed in an autoclave — high-pressure steam melts and drains the wax completely, leaving a hollow ceramic mould. The shell is then fired in a furnace to 900–1100°C, hardening it for casting.

Step 05 — The Pour

Molten Metal Pour & Solidification

Molten alloy — stainless steel, brass, aluminium or zinc — is poured into the pre-heated ceramic shell at 1,200–1,600°C. Metal fills every cavity of the mould with precision. The assembly is left to solidify under controlled conditions to ensure correct grain structure and dimensional integrity.

Step 06

Finishing & Quality Control

The ceramic shell is broken away by vibration and shot blast. Individual castings are cut from the sprue, then ground, machined, heat-treated and surface-finished as specified. Final dimensional inspection and visual quality review are conducted before release.

Technical Scope

Materials & Surface Finishes

Investment castings are available across a comprehensive range of alloys and surface treatment options. All grades are available with material test reports.

Material	Common Grades	Surface Finishes Available	Typical Applications
Stainless Steel	304, 316, 316L, 316Ti, 410, 420, 630	Mirror polish (#8), Satin / Brushed (#4), Sandblast, Electropolish, Passivation, PVD (gold, black, rose gold, titanium)	Architectural ironmongery, marine fittings, food-grade components, decorative hardware
Brass	C360 (Free-cutting), C377, H59, H62, CuZn39Pb3	Bright polish, Brushed satin, Chrome electroplate, Gold plate (3µ, 5µ, 8µ), Antique brass, Nickel plate, Powder coat	Plumbing fittings, furniture hardware, architectural accessories, electrical components
Aluminium	A380, ADC12, A356, LM25, AlSi10Mg	Anodising (clear, black, colour), Powder coat, Shot blast, Machined bright, Chrome plate	Lightweight structural parts, automotive components, industrial enclosures
Zinc Alloy	Zamak 3, Zamak 5, ZA-8, ZA-12	Chrome plate, Nickel plate, Epoxy powder coat, Antique finishes, Spray paint	Decorative accessories, consumer product hardware, fine-detail components

Markets Served

Industries & Applications

Architectural & Interior Hardware

Door handles, hinges, balustrade fittings, handrail connectors, pull bars, sign brackets and decorative metalwork for commercial and residential projects.

Furniture & Cabinet Fittings

Connector joints, levelling feet, casters, decorative knobs and pulls, structural brackets and specialist fasteners for furniture manufacturing and joinery.

Marine & Offshore

Stainless steel deck fittings, cleats, fairleads, chain plates and structural castings for vessel construction and refit — built for saltwater corrosion resistance.

Industrial Machinery

Valve bodies, pump housings, bracket assemblies, impellers and specialised structural parts for machinery manufacturers across diverse industrial sectors.

Decorative & Lifestyle

Fine-detail decorative castings, fashion accessories hardware, luxury goods fittings and high-finish decorative pieces in stainless steel, brass and zinc alloy.

General Engineering

Standard and custom engineering components for OEM manufacturers requiring consistent dimensional accuracy, verified material properties and reliable supply.

Standards & Compliance

Quality Assurance

As a professional trading intermediary, Jinheng's quality assurance role spans the entire procurement cycle — from initial factory qualification through to pre-shipment inspection and documentation handover. We do not simply pass through factory quality claims; we independently verify them.

All manufacturing partners in our network are required to maintain current ISO 9001:2015 certification and to submit to periodic audits. Where products are destined for regulated markets — the European Union in particular — we ensure that applicable CE marking, REACH compliance and RoHS restrictions are addressed at factory level and documented accordingly.

Clients who require independent third-party inspection (SGS, Bureau Veritas, Intertek) can arrange this through us or independently. Our factories are accustomed to third-party audits and fully cooperative with inspector access. Full results and corrective action records are shared with clients.

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Pre-Shipment Dimensional Inspection

Critical dimensions checked against approved drawings or first-article sample. Results documented in inspection report provided with each shipment.

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Visual & Surface Quality Review

Surface finish, casting integrity and plating/coating consistency reviewed by sampling. Rejections and corrective actions managed before release.

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Material Certification

Material test reports (EN 10204 3.1 or 2.2 as applicable) available for all material grades. Composition and mechanical properties verified against specified standard.

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ISO 9001:2015 Quality Management System — mandatory for all partner factories

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CE Marking & REACH EU regulatory compliance documentation available for applicable products

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Material Test Reports EN 10204 3.1 / 2.2 mill certificates for all specified alloy grades

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Third-Party Inspection SGS, Bureau Veritas and Intertek inspections arranged on request

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Full Trade Documentation CO, Invoice, Packing List, BL and all required import documents

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Corrective Action Management Non-conformances tracked and resolved before goods are released for shipment

Get in Touch

Enquiries & Quotations

Talk to Our Team

Whether you require pricing on catalogue items, wish to discuss a custom component development or have technical questions about our manufacturing capabilities, we welcome enquiries from trade buyers worldwide. We respond to all commercial enquiries within one business day.

For OEM and custom projects, please provide your drawings or specifications when enquiring — this allows us to give you a considered response rather than a provisional estimate.

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Email jg-hong@outlook.com

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Business Hours Monday – Friday, 09:00 – 18:00 HKT

Send an Enquiry

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Company

Email *

Phone / WhatsApp

Enquiry Type

Message & Requirements *

We handle all enquiries with strict commercial confidentiality. Drawing files and proprietary specifications shared with us are treated as confidential and not disclosed to third parties without your consent.

Sourced Precisely. Delivered Reliably.

A Professional Trading Intermediaryfor Precision Cast Components