... oiled,powder coating3)Galvanized as your requirementUSAGE: Car-making ,machine manufacturing,Container Frame,FurnitureMAIN MARKET:Middle East, Africa ... with us. Commodity black square pipe/carbon steel tube/welded pipe Dimension10-600MMThickness0.5-25MMLength5.8-12M ... water supply projects; building, central air-conditioning pipe, fence, threading pipe, rolling doors, metal frame, support tube, ...