High-frequency longitudinally welded yeeb nkab ntau lawm kab yog tsuas yog siv rau zus tau tej cov welded steel yeeb nkab ntawm φ8 ~ φ610 hli thiab phab ntsa thickness ntawm 0.5 ~ 20 hli raws li zoo raws li zus tau tej cov square, rectangular, thiab lwm yam kev cai seamless yeeb nkab profile, Carbon steel yeeb nkab , ERW steel tube. Cov kab tuaj yeem tsim cov welded kav nrog zoo machining thiab siab precision assembling ntawm kev kub ceev.