... BS4825-1,ASME BPE, GB/T17395 standards, custom polished. Stainless Steel tube Feature:Standard:DIN11850,3A,SMS3008,ISO1127,BS4825-1,ASME BPE ... /240 Grit/320Grit/420Grit/Unpolished Sanitary stainless steel tube, stainless steel pipe, 304 stainless steel tube, 316 stainless steel tube, polished. Sanitary pipe and seamless pipe with ... Amoi provide 3.1B certification of EN10204 for all the steel material.