... Stock information:in stock 304L Stainless Steel Pipe 304L Stainless Steel Pipe Stainless Steel Tubes & Pipes are ... 3, No.4, No.8, 8K, HL(Hair Line) ,Polished 4.ShapeRound,rectangular,square5. Applications Petroleum, chemical ... heat preservation and refrigeration, mechanical equipment, food, electricity, water conservancy, architecture, aerospace, navigation shipbuilding, environmental protection and ...