No. 6555 Songze Avenue, Chonggu Town, Qingpu District, Shanghai, China
Quality Traps and Solutions in Heat Treatment of CNC Machined Parts

Introduction: A ¥500,000 “Hardness Crisis” Last summer, our received an urgent order — 200 critical bushings for oil drilling equipment, made of 17-4PH stainless steel, requiring hardness HRC38-42 and dimensional tolerance ±0.01mm. The client specified a heat treatment supplier. We…







