Stainless Steel Pipe Fitting 1) Grade:321,304,304L,316,316L,317, ... etc. 3) Standards: /ASTM/ASME/DIN/JIS and so on. Stainless Steel Pipe Fitting Features:1) pipe diameter : 6mm-630mm pipe thickness ... requirements,we assure of our best attention all the time. Sanitary Stainless Steel Pipe Fitting