BA Tubing manufacturing txheej txheem
Main yeeb nkab → txias chav roj rho tawm → txiav taub hau → degreasing thiab degreasing → tu thiab ziab → ci annealing → straightening → txiav kom ntev → polishing → dej ntshiab huv → ziab thiab tshuab → tshuaj xyuas turbine → huv ntim → shipping
