2,000 m² Standardized Plant • 50+ Skilled Technicians • Luncang, Nan'an

5-Stage Autonomous Closed-Loop Sanitary Ware Manufacturing

From precision steel mold tooling and gravity solid brass casting to multi-axis CNC machining, mirror polishing, and 24-hour Acidic Salt Spray 6-layer electroplating—100% completed in-house.

5-Stage Closed-Loop Sanitaryware Manufacturing Infrastructure

Situated in China's plumbing hardware capital of Luncang Town, Nan'an, Quanzhou, Keshiman Kitchen & Bathware's 2,000 m² manufacturing plant houses a fully integrated 5-stage closed production ecosystem operated by 50+ skilled technicians. Unlike trading intermediaries dependent on decentralized subcontractors, KSM conducts mold tooling development with 0.02 mm CNC tolerances, gravity and low-pressure CW617N brass casting, automated multi-axis precision machining, multi-stage mirror polishing, and in-house 6-layer electroplating under one roof. This closed loop ensures internal wall uniformity, eliminates metal sandholes, and guarantees zero leakage under continuous 0.6 MPa working water pressure. Producing over 80,000 finished sanitary units monthly with annual sales exceeding 10 million RMB, our factory delivers complete container orders within 30 days. We provide global B2B procurement teams with transparent facility audits, custom laser branding, private-label packaging, and verifiable manufacturing compliance for luxury hospitality and residential architectural developments.

Testing Standards: 24h Acidic Salt Spray (Level 10) • 1.6 MPa Burst Test Regulatory Compliance: cUPC • NSF-177 • WRAS • CE • ACS • WaterMark Production Cluster: Nan'an Luncang Plumbing Base, Quanzhou, China

1. In-House Mold Development (模具自主开发)

Independent 3D CAD structural design and CNC steel die machining ensure original product silhouettes, accurate internal water channels, and rapid ODM prototyping.

2. Gravity & Low-Pressure Brass Casting (重力/低压铸造)

Faucet bodies are cast from thickened low-lead solid brass in a single piece, eliminating internal sand holes, gas porosity, and structural water seepage risks at the source.

3. Multi-Axis CNC Precision Machining (精密机加工)

Automated CNC lathes machine valve cartridge seats, O-ring grooves, and G1/2", G3/8", and 1/2"-14 NPT threads to Tier-1 brand dimensional tolerances.

4. Multi-Stage Fine Polishing (精细抛光)

Multiple progressive buffing and ultrasonic degreasing stages create a flawless, mirror-smooth metallic substrate prior to electroplating.

5. In-House 6-Layer Electroplating (自主电镀车间)

Our autonomous 6-layer electroplating workshop passes rigorous 24-hour Acidic Salt Spray (ASS) testing, ensuring zero rust or peeling in humid coastal climates and Southern "Huinantian" condensation.

6. ~30-Day Custom Delivery & Supply Chain

Backed by Nan'an Luncang's complete upstream plumbing cluster and strong raw material inventory, we compress custom OEM order delivery to ~30 days.

Ready to Launch Your Sanitary Ware or VC Filtered Shower Line?

Contact Quanzhou Keshiman's Luncang engineering desk for FOB pricing, custom laser branding, thread adapters (BSP/NPT), and sample kits.

Request Factory Quotation → Browse 51+ Sanitary Ware SKUs
5-Stage Closed-Loop In-House Infrastructure & Technical Precision Matrix
Production Stage Primary Machinery & Equipment Dimensional Tolerance Verification Standard Capacity / Yield
1. Mold Tooling High-Speed CNC Milling & EDM Stations ±0.02 mm 3D CMM Coordinate Inspection 15-20 custom molds/month
2. Solid Brass Casting Gravity Casting Machines & Core Shooters Zero internal sandholes Optical Emission Spectrometry (CW617N) 60,000 castings/month
3. CNC Precision Machining Multi-Axis CNC Lathes & Thread Millers ±0.01 mm Thread Go/No-Go Gauge Testing 80,000 pcs/month
4. Mirror Polishing Automated Robotic Arms & Master Hand Buffers Surface Ra < 0.05 μm Visual Refraction & Profilometer 75,000 pcs/month
5. 6-Layer Electroplating Continuous Multi-Tank Plating Line (Cu/Ni/Cr/PVD) Layer thickness 12-15 μm 24-Hour Acidic Salt Spray (Level 10) 85,000 pcs/month