Spring loaded ratchet strap is made in Chinese factory-Jiaxing Ganland Auto Parts Co., Ltd. E track tie down ratchet strap ia made of mild steel material and the surface treatment is yellow zinc plated. Usually,a set ratchet buckle strap is including steel hook,powerful strap and ratchet buckle.The strap is different length on both sides of the E Track ratchet straps. And the length of the long side is about 12 meters. The safe work breaking load is about 1100lb(5 tons),we did the tensile test Fitting style spring E-Track, body material polyester, hardware material steel. Fixed end, north American standards,meet the international standard,cargo straps, cargo bars and track systems ratchet straps. One hand snap-in and easy release fitting make logistic straps the preferred way to secure among interior van haulers. Crank down ratchet buckle adds tensioning power. Ratchet and end fittings are zinc dichromate plated and fit easily into E, A or F track. Straps are color coded for easy length identification to save you time when securing a load. With our strong technology strength, our main range covers many series, which have hundreds of models and thousands of types, like Van Trucks, Cab Trucks, Wing Trucks, Fence Trucks, Trailers, Containers, Refrigerated Trucks, Thermal Trucks, Engineering Vehicles and other commercial and special vehicles. Our main products include trailer door lock system, door hinge system, door seal, door retainer, buckle, roller, e-track, winch, euphroe, buffer, folding step, lashing ring and other locks, hooks, latches, wrenches, aluminum sections and container corner fittings etc. Please search our web: http://www.gltruckparts.com and find some items to let us quote for you.