... : Suzhou , China (Mainland)Category: Pipe FittingQualification: ISO9001, API,CEStandard: ASME,ANSI,MSS,DIN,JIS,BS,GB,GS,KS,APIApplication: Petroleum, chemical, power, gas ... types of lap joint flanges . All flanges are produced under ISO9001, We are confident with our professional technics and excellent service ...