Shandong packaged with http://www.lydbd.com/ fitting way: a) melt lap. After it uses electric welding, heat welding method of high frequency oscillation mechanical and ultrasonic welding or the like, it is heated to melt the plastic surface with the melted surfaces of the two ends of the lap belt up at a certain pressure to maintain a certain time, to be melted surface condensation adhesive plastic strip joints good way. The joint approach applies to polypropylene plastic tape, because polypropylene plastic with metal buckle belt when fastened mechanically, its strength is only 50% of the base material, adhesive connection does not apply. b) metal button. This method is to use a one-way ratchet tensioner work to make the belt tension, then placed an iron buckle at the joints, and then clamp the iron buckle wrap two straps and sides of teeth irregularities iron buckle tooth, bite the tape will not to release it. Iron buckle usually made of galvanized iron, to adapt to choose the specifications of the iron buckle strap model based on the operation. c) Ligation. Such joint approach is based on flexible plastic rope, twine as the tying materials, joints labeled slipknot. This joint approach both strong and beautiful, and easy to untie.