Puller products in a variety of metal parts are heat treated and professional testing, simple mode of operation can be used to ensure security. Tensioner using a high-strength polyester yarn production, low water absorption, strong Adaptive environment, suitable for use in transportation goods to professional tools. Each puller are black stripes says that breaking strength, the company can decide or not according to customer requirements with a black stripe, and black stripes. Tensioning devices are widely used in logistics enterprises, the army transport goods bundled in, train transportation purposes. Suitable for fastening, binding objects to prevent loosening.