Tianjin Rainbow Steel tsim cov raj plaub fab uas yog ib hom hlau ntev nrog seem hollow thiab tsis muaj seam nyob ib puag ncig nws. Nws yog ib qholub raj plaub fabtsim los ntawm kev rho tawm cov raj seamless los ntawm plaub sab ntawm lub pwm. Lub raj square muaj qhov seem hollow thiab siv dav ua cov yeeb nkab rau kev xa cov kua. Nws feem ntau yog siv rau kev thauj cov kua, kev txhawb nqa hydraulic, cov qauv kho tshuab, nruab nrab thiab qis siab, siab siab boiler yeeb nkab, yeeb nkab pauv cua sov, roj, roj thiab lwm yam lag luam. Nws muaj zog dua li vuam thiab tsis tawg. Cov yeeb nkab steel kub dov yog tsim los ntawm kev hla cov ntawv hlau los ntawm cov menyuam kom ua tiav cov qhov loj me tshwj xeeb. Cov khoom tiav lawm muaj qhov chaw tiav nrog cov ces kaum radiused, thiab yog welded lossis seamless. Kev tsim cov yeeb nkab steel kub dov square suav nrog dov cov hlau ntawm qhov kub tshaj 1,000 Degree.