The Organ Guard is made in three ways: one of its basic components is a PVC skeleton that supports and stabilizes each hinge, this skeleton can be processed in different ways and external folding material closely connected. One of its basic components is a PVC skeleton that supports and stabilizes each hinge, which can be attached to an external hinge material in a variety of ways. One is sewing method, which is used in high temperature working environment. Sewn with a special thread, it is strong and durable even under extreme load. The PVC skeleton is sewn onto each fold to reinforce the stability shield. You can also choose from a variety of materials. The other is thermal bonding. At a certain temperature, with the help of a special flux can make the internal PVC skeleton and external hinge-firmly bonded together. If the shield is used in a moderate temperature environment, this method may be used. The other is the high frequency welding of the outer PVCTPU coating cloth and the inner PVC skeleton by the high frequency welding machine, which has high efficiency, high speed and no need to add any auxiliary adhesive, the Shield which has been welded by high frequency does not need to be maintained at all, and is waterproof, dustproof, oil-proof and acid-proof.