1. highest quality products 2. most competitive price 3. best service 4. most reliable cooperation 5. 19-year experience Specifications1. Customerized parts2. Material: alloy steel, carbon steel, stainless steel3. Q.A control4. Certification: ISO 9001-2008, ISO/TS 16949:20095. Standard: ASTM, BS, EN, DIN, GB, JIS, etc.6. Heat treatment: normalizing, tempering, QT7. Timely delivery, reasonable ...