1.High-performance blast door(CE,ISO2008,SGS,EC,5S) ... 7-15day ZHE JIANG SHENDING DOOS CO.,LTD 1.High-performance blast door(CE,ISO2008,SGS,EC,5S)Standard Features ... acid cleaning phosphorizing antirust processing with heat transfer-printing on surface, looks like the natural wooden grain. Or ... with powder coating on surface. (11). Wide-angle peephole, easy for the ...