Cov yeeb nkab steel ua lub luag haujlwm tseem ceeb ua cov khoom siv tseem ceeb hauv kev tsim kho, engineering, thiab kev tsim khoom. Ntawm lawv, Q24G steel yeeb nkab yog ib qho yooj yim nruj-fitting steel yeeb nkab, thiab nws cov khoom yeej ib txwm nyiam ntau xim. Hauv kev lag luam steel, nkag siab cov yam ntxwv ntawm ...
Nyeem ntxiv