Qingdao Hainuo Machinery Production Co., Ltd (QDHN) is a leading manufacturer of premium automotive hose and tubing. Our corporate headquarter and manufacturing are located in Qingdao, China, with customers around the world.

Hainuo have been serving the automotive industry since 2003. With its long history of reliable performance, the brand QDHN-LD^®️
is synonymous with securely hose. As QDHN has grown over its 17 years history, it has achieved status as an innovative, reputable, impactful manufacturer of with divisions in both OEM and aftermarket around the world.

Today Hainuo has the largest and most complete inventory of original replacement brake hose assembly. Our product line has expanded over the years and now includes over 20,000 popular vehicle OEM numbers and over 100,000 interchange aftermarket numbers. Hainuo has always had driver safety at its core, and we continue to be the primary source for the hose market and are constantly developing new product lines to satisfy our customers ‘need and industries’ developing.