Precision hydraulic fitting with plating zinc,We fabricate metal parts over 5.000. ... machines which value US$300,000.00 for custom-made fittings .4,20 sets of punching machines for punching process. ... ,Depth gages.4, thread gages,ring threads gages with many sizes,NPT,NPTF,BSPP,BSPT,NH,M...5,projection meter 6 ... gauge8,Many go.no-go pins. Precision steel hydraulic fitting with plating zinc is available.