... very good corrosion resistance , the surface gloss appearance; ventilation, lighting, cooling, explosion-proof, non-slip performance; anti-product contamination. ... the product throughout the industry, this series of steel grid plate loaded flat center distance of 30mm, comply with U.S. ... , trestle, protective fencing, sun screens and so on. Series 3 (pitch 60mm) grating is a special application for the ...