Stainless Steel Welded Pipe Grade:201, 202, 301, 304, 304L, 316, 316L Outer ... ) Packing: Every tube is sleeved in plastic bag individually, and several tubes are packed to be bundle without any logo.8) Application ... , Railing, Staircase, Door, Window, Balcony, Fence, Bench, Furniture, etc. Stainless Steel Heat Exchanger Tube