With two subsidiaries—Nantong Carto Auto Parts Co., LTD and Jiangsu Rainbow Auto Parts Co., LTD—founded in 2007, the company brings nearly two decades of expertise in the automotive industry. Headquartered in Shuyang Economic Development Zone, Suqian City, Jiangsu Province, the facility spans 60 mu, featuring a construction area of 37,500 square meters and employing approximately 600 staff members.

As a trusted Air Conditioner Hose supplier, the company manufactures premium-quality hoses and pipelines designed for automotive applications. Its core product range includes automotive cooling system pipelines, thermal management system pipelines, intake and exhaust system pipelines, air conditioning system pipeline assemblies, silicone tubes for the new energy sector, rubber molding products, extruded rubber seals, and belts.