... SQUARE PLUG (SQ)1.The SQUARE PLUGS are designed and manufactured2.according to international standards3.such as ANSI,API ... BS,GB,JIS,etc.6.We can offer desinging and manufacture heterotypic standardsproducts for customers concrete demand.7.Material ... , DIN259/2999, JIS B0203Application industriesFor use in the Pulp and Paper,Water Treatment,Sewage Treatment,Chemical,Biotech,Pharmace uticals,Food ,Mining ...