ASTM ọkọlọtọ 304 enweghị nkebi ígwè eriri igwe tube -Liao cheng sihe igwe anaghị agba nchara ụlọ ọrụ limited.

anyị pụrụ iche na stiainless igwe eriri igwe tube, ọkwa 201 304L 304 316 316l 2205 625 825 Alloy ect