1.galvanized steel grating 2.Low carbon steel 3.Surface:hot dip galvanized 4.ISO9001:2008 ... processing:galvanized1. brand: Qiangren2.Material:steel grating is made of low carbon steel plate,stainless steel plate,flat steel plate,etc3 ... , helps column, channel pedal, railway, high CeDao floor drain cap, platform scale, covers the grille, stereo, road parking lot, organs, schools, factories ...