... nonstandard parts 4:OEM acceptable 5:ISO9001 Pipe connectors(tube fitting)Specifications: 1.High quality control,Competitive price, Fast ... : Zinc plated, Chromated plated, Electrophoresis, Powder coating, Anti-corrosion,etcApplication: Auto part, Medicine part, Machine part, Building part,construction machinery parts ... ≤0.02 griding machine2 ≤0.02drilling machine10≤0.02 Pipe connectors(tube fitting)