... 316l 1) Products Name : high finshed stainless steel sphere in grade 201 304 ,Attention :We are a large manufacturer ... tube and embossed tube : O. D. mm9.5 , 12.7 , 15.9 , 17 , 18 , 19. 1 , 20 , 21 , ... ) Square tube side length , mm : 10*10 , 12*12 , 15*15 , 18*18 , 19 * 19 , 20*10 , 20*20 , ... ,240grit ,180grit ,HL,2B,BA,or non polished 15) Attention :Our products are with high quality and competitive ...