Ko te ngongo ASTM a269 he momo ngongo, he kanapa te mata he tino ataahua, he tino roa te roa, ka eke te roa ki te 4000M/coil me te kore he paiherea, ka taea te whakamahi i roto i te hinu, te hau maori, te ahumahi matū, te hanga kaipuke me etahi atu ahumahi. rauemi:316L,316,304,incoloy825,incoloy625,2205 2507;Steel ngongo OD:6MM-25.4MM;Steel ngongo taiepa matotoru:0.5MM—2MM;Steel ngongo roa:1000M-6000M;