China Trailer Attachment Trailer parts tow pins Product introduction: Trailer container quick lock, traction pin, air chamber, landing gear, etc. Packaging details: wooden box Container transportation Delivery Details: Within 7 days after receipt of payment. The 50 traction pins produced by our company are manufactured in strict accordance with the GB/T4606-2006 standard. The products are exported to various countries and regions, and have now formed a large-scale, specialized and serialized production capacity. The traction pin is an important component that connects the semi-trailer and the tractor and bears the traction force, and is connected to the traction seat. It is generally forged from steel with a chrome alloy structure. There are 50# traction pins and 90# traction pins for different cargo tonnage. The total weight of 50T trailer and cargo is limited, 50# pins are used below 50T, 90# pins are used above 50T, and 90# are recommended for those above 90T.China Trailer Attachment website:http://www.yahuamachinery.com/semi-trailer-parts/trailer-attachment/