Kūlana ASTM A269 A249paipu wili kila kilamea hana paipu wili kila kila

ʻO Liao cheng sihe mea kila kila liʻiliʻi ka hui e hana i ka paipu wili kila kila kila pololei, ʻo ke ʻano o ka paipu he 201 304 304L 316316L a me nā papa ʻē aʻe

ʻO ka metala 625 825 2205 825 2507 ect, ʻo ka lōʻihi o ka paipu mai 300-3500M / coil, ke kūlana i ka paipu, ʻo ia ka paipu ASTM A249 269,