pipe fitting: 1.ISO9001:2008,CE,TUV certified. 2.DN15-DN150,1/ ... ,AISI304L,AISI316,AISI316L. 3.DIN,SMS,ISO,IDF,AS Pipe fitting:SPECIFICATIONS:1.ISO9001:2008,CE,TUV certified. 2.DN15-DN150 ... . of R&D Staff is 21 - 30 People ;No. of QC Staff is 41 - 50 People;Management Certification is ISO 9001 ... America,South America,Eastern Europe and Southeast Asia etc. pipe fitting