stainless steel floor grating 1. Common pitch:30mm&40mm 2.ASTM A123,SS400 ... . ISO 9001:2000 4.Used in flooring,walkway stainless steel floor grating:Manufacture Method: pressure welding steel grating is firstly arrange ... material, negative investment, construct convenient, saving project time, wear well, modern and style, light structure, anti amass dirt, decrease windage, simple ...