1) Small and medium-sized steel bars, wire rods, steel bars, medium-diameter steel pipes, steel wires and wire ropes, etc., can be stored in a well-ventilated material shed, but must be placed on top and under the pad.2) Some small steels, thin steel plates, steel strips, silicon steel sheets, small

Spiral pipe is also called spiral steel pipe or spiral welded pipe. It is made by rolling low-carbon structural steel or low-alloy structural steel strip according to a certain spiral angle (called forming angle) into a tube blank, and then welding the pipe seam together. It can produce large-diamet