Lub kaum sab xis

Lub kaum sab xis yog hais txog lub kaum sab xis uas tsim los ntawm kev sib tshuam ntawm kab rov tav projection ntawm steel yeeb nkab centerline thiab steel strip centerline, feem ntau denoted li . Kev tsim lub kaum sab xis yog qhov tseem ceeb tshaj plaws nyob rau hauv txoj kev tsim ntawm kauv seam ob sab submerged arc welded kav. Nws tsis tsuas yog qhia txog lub kaum sab xis ntawm txoj kab nruab nrab ntawm cov yeeb nkab steel centerline thiab nws cov khoom sib txuas steel sawb centerline tab sis kuj txiav txim siab txoj hauj lwm ntawm chav tsev ntawm cov kab dov, uas yog qhov tseem ceeb rau qhov tsim nyog sib piv ntawm steel yeeb nkab txoj kab uas hla thiab steel sawb dav.