Container having a rectangular base and its manufacturing

The front bag of container with (2), rear (1) and bottom surface (3); the bottom surface (3) is folded along the welded line, two thin slices extends from the folded line, which is a front handle (1) or rear (2) is; the first body (1,2) side welded on the same seat, welding two upright plate handle is bevelling with the handle the folding bottom surface (3) are respectively; Is a container, bottom surface (3) is elastic component the second rotating part has a rectangular to form the base; the bottom surface (3) is (5) is formed on the bottom plate; bottom surface (3) is formed by two pieces of the triangular part (19), the bottom defines of the rectangular bottom two sides, a front end of the container, the rear part formerly back to form, the side extends from the side, and two ends (1,2) welding formed in the side welded line, two triangular part (19) welded, wherein the same or seat (19) welded with a triangular part of the raw-water the side of the fixing the structure.