Shanghai NCM is one of leading manufacturers & exporters of trailer  Parts, such as, hitch balls,Towballs, trailer couplers, adjustable ball mounts, A-frame coupler, adjustable height couplers,bumper pull forged couplers,straight couplers,square jack,A-frame Jack,sidewind Jack, topwind Jack,jockey wheels,Weight Distribution Hitch with sway control, Hitch Shank, Manway Cover, fasteners, other various forging & casting parts and mechanical parts. With enough capacity to produce orders to satisfy customers needs, large and small. Our advantage is to produce special, high precision and complicated parts according to customers samples and drawing. No matter large and small orders we can accept. The quality is excellent, the prices are competitive, the delivery is prompt, the after-sales service is good. We have been exporting various trailer parts to European countries & North America mainly for many years, no complaint received so far. Therefore, We will supply you with best prices and high quality products. Our future cooperation will bring much profit to you