We can make and export trailer parts in China. Pls have a look at the technical information for some products as below :
1. trailer couplers : 7000lbs, 12500lbs , etc.capacity....

Selling trailer couplings/ couplers in China, 1. 7000lbs, 12500lbs , etc.capacity are available, ball size 2-5/ 16" , designed for 50 degree A-frame tongue, painted finish.
2.....

We are providing various slack adjusters for trailer, Application: BPW , D-C & SCANIA , Trailer Axle Number: 50601001, etc.Spline: 10 teeth , 26 teeth, etc.Bush hole dia.: 14mm , ....

Selling Hitch ball: ball size: 1-7/ 8" , 2" , 2-5/ 16" , etc. Color : Chrome,
surface treating passed CASS TEST, Salt Spray Test 22hrs, No red rust, V-5, Type : US type
Ball....

To export wheel rims to different countries in China, Various specifications ( for tube type and for tubeless ) are available . Disc thickness & vertilation hole & weight can be....

To supply brake drums from China. Materials: grey cast iron, Surface treatment: zinc-plated or spray-painting . Brake Dia.: 160mm, 250mm, 203mm, 200mm, 250mm, Shoes width : 35mm, ....

Selling wheel hubs for trailers in China. The materials are ductile cast irons or steels. Galvanized Hubs, 4-5 studs. PCD 4" or 4.5" .Bearing type is roller. Axle capacity 750kgs, ....

We are making and exporting heavy-duty square jack in China. Capacity 2000kgs, 5000kgs, 8000kgs, etc.net weight : 16kgs, 32kgs, etc.Max. Height : 1540mm, 1240mm, etc. style : ....

Making and exporting jockey wheels, 6" , 8" , 10" wheel, Capacity: 1000kgs, 1500kgs, 2000kgs. 6" dual wheel, Capacity: 2000kgs.If you are interested in trailer jockey wheels, Pls....