ABOUT

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.We not
only have thread gauges, but also have plain gauges.

We are also dedicated to supplying outstanding thread taps and dies, including Metric thread taps, UN thread taps etc. We can supply straight flute taps, spiral point
taps, spiral flute taps , fluteless taps , round dies and hex dies etc.