Precision steel hydraulic fitting with plating zinc,We fabricate metal parts over 5.000.000pcs per ... 1,100 SET OF CNC machines for high output with quick delivery 2,Skilled and rich experienced staff.We ... gages,Depth gages.4, thread gages,ring threads gages with many sizes,NPT,NPTF,BSPP,BSPT,NH,M...5 ... thickness gauge8,Many go.no-go pins. Precision steel hydraulic fitting with plating zinc is available.