Heavy duty drop/rise Adjustable Trailer Hitch

NINGBO RUICAN MACHINERY COMPANY is a professional supplier for casting and machined part which is widely used for Automobile, Medical, earthmover, petroleum, electricity Industry, and in long-term business with foreign customers from North America and west Europe, we are exactly know what's the customer requirement when they provide drawings and material specification. And our engineering dept. can suggest the best process and technology to make the component or any design changing if necessary. Most of our products are exported to Canada, USA, and west Europe Germany, France, Denmark, Italy, Norway,Turkey, Finland, Switzerland, etc. and win good reputation among our customers.  Ningbo City Yinzhou Ruican Machinery Co, Ltd is located in Ningbo city, one of the famous and the second biggest container port in China with convenient transportations for air, ocean and express, which established 2003. Ningbo City Yinzhou Ruican Machinery Co, Ltd is direct manufacturer, covers the Sand casting Foundry. Investment Casting Foundry and Machining Workshop, and offer the Ductile Iron &Grey Iron Sand casting parts, investment casting parts, Aluminium castings and precision machining parts. The produced parts are widely used in Auto parts: Agricultural, Marine: Architectural Machinery, Medical; Food Machinery, Valves and so on. The material which we used is ductile iron: Aluminium: Bronze; Brass: Copper: carbon steel: stainless steel end so on. At the same time, we can offer the CNC machining Phosphating: Blackening Processing Hot Dip Galvanizing: Powder Coating: Painting: Plating, Assembly for customers. 85% products are sold to overseas, the customers are from America, Canada, EuropeUnion, ect.; 15% products are sold in National Market. There are about 200 employees in our company now and around 10 technicians from medium to senior. We have the manufacturers and tester equipments, such as medium frequency furnaces: shot blaster; hardness tester; Spectrum Analysis tester; Metallurgical analysis tester, CMM: crack detectio