... , mechanical anti-loosen, screw anti-loosen types)5 Various Standard components: Fasteners for motor, diesel engine, mechanical vehicle, petrochemicals, ... and electric power, etc. 6 Mechanical processing components thread spinner fittings, auto fittings, and full set of ... railway products: T B, UIC , AREA, etc.Standards for standard components: GB, DIN, ASTM/ANSI, BS, JIS, etc. the ...