One-Stop Sheet Metal Parts and Custom Enclosure Manufacturer in China
EM & ODM Manufacturer, Laser Cutting, Bending, Welding, Plastic Injection and Complete Surface Finishing
Custom Stainless, Aluminum, Copper, Metal Enclosures
From prototype development to mass production, we provide precision sheet metal fabrication, custom metal enclosures, CNC machining, stamping and assembly services for electronics, automotive, industrial and medical applications.
Fast quotation. Engineering support. competitive price. Reliable quality.
RHF stands as an industry pioneer delivering integrated solutions for rapid prototyping and custom metal component manufacturing.
Guided by our core tenets — pursuit of excellence, persistent innovation and customer-first mindset — we have maintained deep roots in the metal fabrication sector for years. Our consistent quality and reliability have won enduring trust from enterprises across the globe, establishing us as their long-term, strategic partner for custom metal parts supply.
Equipped with intelligent cutting-edge production machinery and staffed by a seasoned team of technical specialists, we tailor solutions to fulfill all bespoke metal product specifications. We provide a full-spectrum one-stop service, spanning high-precision premium prototype development through full-scale mass production.
A Premier Manufacturer of Precision Hardware & Plastic Component Machining
Since its inception, ZEH has anchored its foundational mission on delivering premium, integrated precision metal machining solutions, underpinned by state-of-the-art smart manufacturing technologies, well-honed precision fabrication expertise, and a customer-first service ethos.
Boasting more than 10 years of deep-rooted experience within the precision manufacturing industry, the company has undergone steady expansion from a modest machining workshop into a globally serving specialist partner for CNC precision hardware production. We cater to clients spanning a broad spectrum of industries, furnishing comprehensive turnkey solutions encompassing high-tolerance custom machining, precision structural engineering development, and innovative auxiliary component supporting services.
The principles behind long-term manufacturing partnerships
Core Values
Uphold craftsmanship and superior quality, dedicate ourselves to technological innovation in precision metal processing, and uphold integrity for long-term growth. We create value through professional expertise, reward customers with original aspiration-driven services, and lay a solid foundation for the enterprise’s sustainable development.
Business Principles
Supported by a complete precision engineering system, cutting-edge innovative technologies and rigorous processing techniques, we deliver high-quality, highly stable custom solutions for sheet metal and plastic components to global clients. We continuously raise industry benchmarks, exceed customer expectations, and provide supremely reliable products and services.
Corporate Vision
We will deepen our presence in precision manufacturing and strive to become an industry benchmark in the global metal component processing sector. Centered on professional technologies, driven by continuous innovation and committed to eco-friendly sustainable manufacturing, we aim to build an internationally renowned manufacturing brand with strong influence and competitiveness.
Service Tenet
Integrity and stability underpin all our operations, and we abide by compliant and pragmatic work standards. We treat every customer and partner sincerely. With consistent reliable quality, transparent services and unwavering dedication, we build long-term, stable strategic partnerships based on mutual benefit and win-win results.
Engineering experience that moves complex projects into production
Our core team is composed of senior engineers and professional precision manufacturing specialists, who have built solid technical foundations and amassed abundant hands-on operational experience. Equipped with versatile expertise and profound industry vision, we accurately capture clients’ unique demands, customize highly compatible and cost-effective exclusive solutions for every customer, and provide professional, efficient technical assurance and after-sales support throughout the entire cooperation process.
With over a decade of comprehensive experience accumulated in the precision metal processing industry, our engineering team boasts profound practical capabilities and has successfully delivered more than 300000 high-quality projects for clients worldwide. Consistent delivery performance and rigorous quality control have won us high recognition and long-standing trust from overseas customers.
Modern precision production and inspection capacity
We are fully equipped with modern precision production machinery and cutting-edge manufacturing processes, building a full-fledged standardized and intelligent production system. Covering the entire workflow from rapid prototyping and small-batch trial production to mass manufacturing, we strike a balance between consistent quality output and fast delivery efficiency. We are capable of stable mass production for bulk orders while exercising strict control over product precision and yield rate, delivering premium, high-efficiency one-stop precision hardware manufacturing services to customers.
We have over 200 sets of advanced high-precision machining and inspection equipment with stable and outstanding performance, supporting strong mass production capacity. Our monthly output capacity stands at 300,000 metal and plastic components.
Recognition from international manufacturing programs
High recognition from clients serves as the core benchmark for evaluating our services and product quality. We deeply value every positive customer feedback, which vividly demonstrates our strengths in high-precision machining and standardized production of metal components.
“We started CNC metal parts orders with RHF last year. Samples meet strict tolerance standards, and their team replies to drawing revisions fast. They rearranged production to deliver our robot parts rush order ahead of time. Small quality issues were fixed quickly, and we now place recurring orders regularly.”
“We buy smart home plastic housings and prototypes here. Mass production has uniform smooth surface without scratches. Cross-timezone communication is easy, they adjust surface finish per our requests. One-stop service from prototyping to mass production greatly simplifies our procurement work.”
“Robot structural parts require ultra-high precision. Unlike other suppliers, RHF passes all our inspections. Engineers propose practical structural optimizations to cut costs without sacrificing stability. Every shipment comes with inspection reports, and we plan to expand sheet metal orders next year.”
“Medical prototypes need certified materials and strict QC. RHF fully restores all drawing details. They prioritized our urgent revised samples for certification within 3 days and patiently handled repeated minor adjustments. They are our trusted partner for medical R&D.”
3000+ global famous partners, 30000+ successfully launched products
We’ve built strong partnerships with top companies from all kinds of industries. These collaborations help us stay on the cutting edge of technology, so we can offer our customers the very best solutions.
RHF specializes in high-end precision manufacturing with years of professional experience and core production capabilities in metal processing. We established our Shenzhen branch (ZEH Audio) back in 2012, with an independent audio R&D team. We provide full one-stop manufacturing services covering diversified audio products, CNC sheet metal fabrication, plastic mold development and injection molding.
To address customers’ customized and diversified production requirements, we established a core CNC metal processing division fully equipped with complete precision processing machinery and a senior technical team, forming a mature and comprehensive precision manufacturing system. We deliver full-cycle one-stop services covering custom development, machining and supporting assembly of components. This streamlines customers’ supply chains, shortens delivery lead times and boosts their overall market competitiveness.
In 2022, the company built standardized and large-scale precision processing production bases in both Shenzhen and Dongguan, greatly expanding our core production capacity and technical process system.
We master core processes including precision CNC machining, metal stamping, sheet metal forming, precision welding, plastic mold stamping and plastic injection molding.
Equipped with strong one-stop comprehensive manufacturing capacity, we realize integrated synchronous production of metal and plastic components. We support customized precision accessories of various materials, multiple categories and high complexity, delivering a full set of integrated supporting manufacturing services for customers.
Over years of development, we have implemented standardized management systems and obtained official ISO certifications. We maintain full standardized quality control covering incoming raw material inspection, production machining, quality testing and finished goods delivery. Supported by reliable delivery performance and comprehensive full-lifecycle after-sales service, our outstanding manufacturing competence and premium service have made us a highly competitive trusted partner for clients in the precision manufacturing industry.
Recognition from international manufacturing programs
Integrated manufacturing for lower project risk and total cost
All-in-One Integrated Precision Forming, Lower Your Assembly Expense
We consolidate core procedures including CNC machining, cutting, precision welding, injection molding and surface treatment under one roof. Every dimension tolerance, cosmetic finish and assembly precision is strictly controlled to match the high standards of premium equipment assemblies. Secondary machining is completely removed, significantly cutting your overall assembly labor and processing costs.
Flexible Custom Development, Aligned with Global Design Standards
We support the full cycle from drawing evaluation and rapid prototyping to mass production. Customized structures, functions and appearances are available, complying flexibly with overseas product design standards across various industries.
Full-Process Compliance & Reliable Quality Assurance for Global Export
A full closed-loop quality inspection system paired with professional durability reliability testing is implemented throughout manufacturing. All materials and finished goods satisfy EU & US environmental and safety compliance standards, with complete official material certification documents available for customs clearance.
Highly Consistent Batch Quality & Stable Long-Term Supply
Standardized production workflows and regular equipment calibration, together with a verified stable supplier network, ensure highly consistent quality for long-term shipments. Fluctuations such as batch color difference and dimensional deviation are effectively avoided.
Quality stands as the cornerstone of our enterprise’s survival and sustainable growth
Since our establishment, we have embedded rigorous quality management across the entire value chain, covering R&D, procurement, production, inspection and delivery. Supported by standardized, systematic quality management frameworks, we safeguard the stability, reliability and uniformity of every metal and plastic component we manufacture.
We fully comply with the ISO 9001:2015 quality management system and have built a full-cycle quality control mechanism, including incoming raw material inspection, in-process patrol checks, procedural quality monitoring, 100% finished product testing and pre-shipment audit. Every production procedure is tightly regulated with refined quality assessment criteria to eliminate processing deviations and hidden quality risks, ensuring all product specifications consistently meet industrial standards and customized client requirements.
