... ISO,IDF,AS,BS,RJT,BPE Standard. Cleaning ball/Tank cleaner (ISO9001:2008,CE,TUV certified) ... or bolted rotary We also supply butterfly valve,ball valve,check valve,diaphragm valve,safety valve,union ... ,tee,cross,reducer,sight glass,manhole cover,cleaning ball,centrifugal pump,pipe holder etc... Advantage: Prompt ... ,000 s.q.m. under construction.We have strong R & D ability ,there are 105 staffs ...