Sab nraum zoov MG Ntaus Ob Chav Girder 150 Pua Crane Nqe
Txuas ntxiv ob sab hauv lub voj voog hauv tsev: qhov kev tsim cov choj, kev sib tsoo tsheb, thiab cov cuab yeej hluav taws xob, Cov crane siv ib los yog ob qho me me raws li nws cov tshuab lifting, muaj qhov crane thiab trolley travelling, , chaw nyob, chav hauv chav tsev, chav fais thiab lwm yam.
