Zinc aluminum , GALVALUME (GL/AL-ZN) 1.ISO 9001:2008; 2.ENTITY FACTORY, MILL, MANUFACTURER; ... . SPANGLE: 1. THE DETAILED INFORMATION OF PRODUCTSZinc aluminum , GALVALUME (GL/AL-ZN) NAMEGALVANIZED-GI HDGGALVALUME/ALUZINCPPGI/PPGLCORRUGATED&PLAIN STEEL PICTURE CERTIFICATE ... RESISTANT STEEL, HIGH-STRENGTH-STEEL PLATE Zinc aluminum , GALVALUME (GL/AL-ZN)