Gaugestools
We are a professional manufacturer and supplier of thread ring gauges and thread plug gauges, including GO / NOGO , RH/LH( right hand and left hand). We have rich ranges of thread grailiages, which include UN (UN,UNC,UNF,UNS,UNEF), Metric, ACME, BSPP (G), BSPT(R), NPT,NPTF,Trapezoidal , MJ, UNJ,UNJC,UNJF,UNJEF,UNJS etc.
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