1.The hardware fixings of ratchet tie down strap product have gone through heat-handing and been tested in sepecialization.The simple operation can ensure satety in use. 2.It made from tensile polyester filament is lowwer in the property of absorbing water.It is stronger to be adapted to natural enveronment and appropriate to use for many kinds of articles in the course of transportation as one specializing tool. 3.Transportation.They are fit to fastening,binding,loosening prevention for all kinds of bodies.