State-of-the-art manufacturing facilities in Wenzhou, Zhejiang. From raw material handling to final inspection - every step controlled and documented.
Modern forging, heat treatment, and machining facilities covering the complete production process for industrial flanges and fittings.
Precision die forging presses for consistent part quality. Controlled forging temperatures ensure optimal grain flow and mechanical properties in the final product.
Solution annealing and heat treatment in controlled atmosphere furnaces. Proper heat treatment is critical for achieving correct mechanical properties and corrosion resistance, especially for duplex and nickel alloy materials.
CNC lathes, milling machines, and drilling centers for precise dimensional control. Meets tight tolerances per ASME B16.5, EN1092-1, and customer-specific requirements.
Organized warehouse with material identification and segregation by grade. All materials stored with heat/lot traceability. Climate-controlled area for special alloys.
Surface finishing, beveling, rust prevention treatment, and sea-worthy packaging. Plywood cases and pallets for safe ocean freight transportation.
In-house hardness testing, dimensional inspection equipment, and PMI (positive material identification) spectrometer. Third-party UT and hydrostatic testing available.
Complete end-to-end control from raw material receipt to final shipment documentation.
Procurement from certified steel mills. Mill test certificates required for every heat. Materials ordered per project specifications.
Incoming inspection: PMI test, chemistry verification, dimension check, surface inspection. Rejection criteria strictly enforced.
Die forging under controlled temperature. Optimal forging ratio for grain structure. Flash removal and preliminary dimensional check.
Solution annealing per material specification. Temperature and time strictly controlled. Sample specimens from same heat lot tested.
Rough machining followed by finish machining. CNC precision ensures tolerances per ASME B16.5 / EN1092-1. Dimensional inspection after each operation.
100% visual inspection, dimensional verification, surface finish check. Products marked with material grade, heat number, pressure class, and size.
Ultrasonic testing (UT) for critical applications. Hydrostatic testing available. Third-party inspection (SGS, BV, DNV, LR) arranged on request.
Rust prevention, VCI bags, plywood cases. Packed per export standards. Documentation package: PL, CI, BL, MTC, Inspection Report.
Quality is the most important component of our company's credibility. We never compromise on inspection standards.
| Equipment | Purpose | Standard |
|---|---|---|
| PMI Spectrometer | Positive Material Identification - verifies chemical composition | ASTM E415 |
| Hardness Tester | Brinell/Rockwell hardness measurement | ASTM E10 |
| Ultrasonic Tester (UT) | Internal defect detection for critical applications | ASTM A388 |
| CMM (Coordinate Measuring Machine) | Precision dimensional measurement | ISO 10360 |
| Microscope | Microstructure analysis for heat treatment verification | ASTM E112 |
| Torque Wrench | Bolt tightening torque verification | Per specification |
Raw material退货判定 -> 材料成分验证 -> 炉批认定 -> 外观检验
开炉记录 -> 热处理参数 -> 状态标识 -> 检验表填报
同炉试样检验 -> 尺寸外观检验 -> 粗车/精车检验 -> 合格标识
量具配备 -> 量具点检 -> 有效期管控 -> 100% Check -> Dispatch Approval
Every product is covered by our 24-month quality warranty. We guarantee that all products leaving our facility meet agreed specifications. In the rare event of a quality issue, our Shanghai team will handle your claim promptly with replacement or full refund.
Contact our Shanghai team to discuss your requirements, request a factory audit, or get a project quotation.
