ASTM A269 A249 paerewangongo kowiri tirakowiri tira hangai ngongo ngongo

Ko Liao cheng sihe nga taonga kowiri tira e hangaia ana e te kamupene he kowiri tira kowiri ngongo kowiri tira paipa tika, ko te tohu o te ngongo ko te 201 304 304L 316316L me etahi atu reanga

koranu 625 825 2205 825 2507 ect, ko te roa o te ngongo mai i te 300-3500M/coil, te paerewa ki te ngongo, he ASTM A249 269 ngongo,