◆ Siv dav hauv kev txiav steel hlau, carbon steel, manganese steel, caij nplooj ntoos hlav steel, titanium alloy, galvanized ntawv, txhuas phaj, tooj dag, tooj liab thiab lwm yam khoom siv hlau.
◆ Ultra-siab hom, tshwj xeeb hlau cov ntaub ntawv txiav.
◆ Siv rau hlau puag ncig, square tube, L kshaped hlau, H Shaped hlau, thiab lwm yam.