... tee 1)Size:DN6 to DN100 2)Certification:CE, ISO 3)Standard:ISO,GB,DIN,JIS,SMSI We are confident that a ... : 304, 304L, 316, 316L, 316Ti, 317, 317L, 321, 321H3) Standare: ISO, DIN, JIS B2316, SNSI, SMSI, GB/T12459,GB/T,ASME ... , biotech, pharmaceuticals, food, architectural,transportation, exhaust system bw seamless steel ASTM B 16.9 tees