... are nonstandard parts 4:OEM acceptable 5:ISO9001 Quick Coupler(pipe fitting)Specifications: 1.High quality control,Competitive price, Fast delivery ... lathe, turning lathe, wire EDM, etc)Various materials(stainless steel, aluminum, brass, steel alloy, plastic etc) Finish: Zinc plated, Chromated plated ... ≤0.02 griding machine2 ≤0.02drilling machine10≤0.02 Quick Coupler(pipe fitting)