Thread Ring Gauge

          Thread ring gauge is the measuring tool for inspecting the outside thread on the products.  Normally, It comes in two pieces. Go and no Go.  There are many type of ring gauge in terms of standards,  G type, NPT, DIN. ACME.  And there are some special thread rings inspecting special products, take oil pipe as example.   Rok Internal Industry Co., Limited provide full solution for thread ring gauge with high accuracy. 

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