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About Company
Dongguan Seme Precision Hardware Co., Ltd. is a professional OEM/ODM manufacturer specializing in custom constant force springs, precision metal stamping parts, spring clips, wire forms, CNC machined parts, laser cutting components, and plastic injection-molded products, serving a wide range of industrial applications. With over 10 years of manufacturing experience, we deliver custom-engineered solutions supported by in-house tooling, flexible MOQs, competitive cost structures, and reliable lead times. Our strict quality control system ensures stable performance and consistent quality, helping global customers build long-term, dependable supply partnerships.
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What They’re Saying
Benjamin Brady
Purchasing managerOur new sensor housing required a seamless integration of a stainless steel spring clip with an overmolded plastic component for waterproofing. The tolerance control was critical. SEME managed both the metal stamping and plastic injection molding in-house, which eliminated alignment issues typical with multi-vendor production. Their project team held weekly cross-functional reviews with us, and the first articles were right on spec. This integrated approach cut our development cycle by at least 3 weeks and ensured perfect part fit from day one,We are very happy with it
Andreas Wolf
Procurement DirectorSourcing a plated fastener that met both our corrosion resistance specs (salt spray 500+h) and strict automotive material declarations was a challenge. Many suppliers offered standard zinc plating. SEME stood out by clearly understanding the requirement for a zinc lamellar coating (Dacromet-type) from the start. They provided full compliance documentation and managed a smooth, small-batch pilot run. This not only ensured the part longevity but also streamlined our PPAP process. They have become a go-to partner for critical, specification-driven components.
Sarah Johnson
Strategic PurchasingAs a startup, our needs for custom CNC machined brackets and springs were complex but volumes were low. We were often turned away or faced exorbitant costs. SEME offered the perfect balance: their engineering team worked closely with us to optimize the design for manufacturability, and their flexible MOQ policy allowed us to order a pilot batch of just 100 pieces. The parts arrived with perfect quality, enabling us to secure our first major client prototype. Their partnership was instrumental in our early growth phase
Elizabeth Davis
Tokyo JPWe were facing a premature wear issue with the constant force springs in our retractable power cord modules. The force was decaying faster than expected, risking product failure. SEME's engineering team didn't just supply springs; they conducted a full root-cause analysis. By adjusting the material pretreatment and the coiling process, they delivered a custom variable force spring solution. The result? The fatigue life of the module increased by over 40% in our accelerated life tests. Their technical proactive approach turned a quality concern into a reliability advantage for our product














