There are two major production bases of Zhongjia copper pipe in Shandong and Changshu, of which, Shandong Zhongjia is located in Zhaoyuan City, Shandong Province, which is known as "the capital of gold in China", covering an area of more than 300 mu and employing more than 800 people; Changshu Zhongjia is located in Changshu High-tech Industrial Development Zone, Jiangsu Province, covering an area of more than 90 mu, with more than 200 employees. The company mainly produces copper pipes, copper ingots and copper alloy pipes of various specifications, models and grades, of which R410A new refrigerant special air conditioning copper pipes, refrigeration (refrigeration) engineering special copper pipes, medical gas and vacuum seamless copper pipes, copper water pipes, branch pipes and pipe fittings are the core products of the company, with an annual production capacity of 120000 tons. The products are widely used in refrigeration, HVAC, construction, medical, automotive industry, electronic information, ship and marine engineering and other fields.