... bars, tubing/ piping/ fittings and make-to-order CNC machining manufactured by qualified Chinese mills.Our high-quality products are ... world. We equip ourselves with the most efficient service tools: 1. Our customers can track their orders status from ... , zinc plated3) Heat treatments: tempered or annealed, induction hardened4) Machining: CNC turning, milling, CNC milling, CNC drilling, CNC boring, ...