... /m2spangle :regular /small /big /zerosteel 1.ISO 9001 2.ASTM A653, JIS G3302 SGCC/SGCH, GB/T 2518... 3.SS grade ... of products NAMEGALVANIZED GALVALUME/ALUZINCPPGI/PPGLCURROGATED STEEL SHEETSCOILD ROLLEDCERTIFICATEISO9001:2008STANDARDASTM A653, JIS G3302 SGCC/SGCH ,GB/T 2518, European standardASTM A792 ...