Yuav ua li cas txhawb kev lag luam steel yeeb nkab hauv 2019
Niaj hnub no, kev lag luam hlau thiab hlau yog lub hauv paus rau hnyav engineering, lub zog thiab kev tsim kho. Globalization ntawm kev ua lag luam yog ib qho kev nthuav dav tshaj plaws ntawm lub xyoo pua no, uas rau ib yam, muaj kev cuam tshuam zoo rau kev lag luam kev lag luam, txheej txheem, hauv ...
saib kom meej