... ,CGC340-CGC570,CGCD1-CGCD3;GRADE 4.Z OR AZ COATED 1The detailed information of productsNAME PPGIGALVANIZED GALVALUME/ALUZINC CERTIFICATEISO9001 ... serveral fields, such as petro, thermoelectricity, tourism, culture and paper-trading, chemicals-trading, steel-trading, etc. It has became ... then to be properly wrapped with water proof /resistant paper, it then to be properly and completely metal wrapped. ...