Tianjin Rainbow Steel Group muaj cov khoom siv ua kom txias, xuas nrig thiab vuam tiav thiab cov neeg ua haujlwm nplua nuj uas muaj kev paub dhau los. Cov khoom lag luam suav nrog ASTM tus qauv WF beam lub hnub ci lub hauv paus, cov C/U-hom av txias, cov hlau txhawb nqa, thiab cov raj torque square/round rau cov cuab yeej taug qab hnub ci thiab ntau yam khoom seem tamping thiab vuam. Cov khoom lag luam no siv dav hauv cov kab ke PV mounting hauv av, cov kab ke slar tracker, cov kab ke nuv ntses hnub ci mounting thiab cov tsev cog khoom ua liaj ua teb PV, thiab lwm yam.