... grating, heavy duty grating. ISO9001-2000,GRATING SPECIALIST galvanized industrial ball stanchions , steel handrail , Galvanized handrail ,GI grating, heavy duty grating ... so on for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on.We produce three ... : DIN24537-1-2006, Japan: JIS (Mr. David Huang) galvanized industrial ball stanchions