... Standards: GB/ASTM/ASME/DIN/JIS 3) TPI:SGS,BV. Stainless Steel Tube Features:1) pipe diameter : 6mm-630mm pipe thickness : 0. ... : /ASTM/ASME/DIN/JIS and etc 4) Applications range: for use in the petroleum, chemical, medical equipment, boiler heat-exchanger ... ,and third part inspection.12.capacity:500 ton per monthtype stainless steel tube size6mm-630mm pipe thickness : 0.8mm-25mmgrade321, 304, 304L, ...