... Inner & Outside 3.Standards: ASTM, AISI, IDF, 3A, SMS, BS, DIN,etc. stainless steel pipe fittings Grades:317, 317L, 825, ... & Outside Cross, Square Steel Cross, Tube Fittings Stainless steel CrossFeatures:1) Name: stainless steel pipe fittings 2) Specifications: OD: From20-1200mm. ... ... Or as your request. 4) Surface:Polishing Inner & Outside5) Standards: ASTM, AISI, IDF, 3A, SMS, BS, DIN. JIS, CNS, KS, ...