Liaoyang Xiangyue Sealing Engineering Co., Ltd. is a holding subsidiary of Tianjin Xiangyue Sealing Materials Co., Ltd. It is a well-known enterprise integrating science, industry and trade, specializing in engineering technical services of non-stop pressure sealing, pressure opening and pressure plugging, as well as product development, research, promotion and application.

Taiyuan Huakexin Precision Machinery Manufacturing Co., Ltd. is a high-tech company specializing in the design and manufacture of complete sets of equipment such as straight seam high-frequency welded pipe units, straight seam submerged arc welded pipe units, large-diameter stainless steel welded pipe units, precision stainless steel industrial welded pipe machines, square and rectangular pipe units, cold-bent steel units, spiral welded pipe units, flat head machines, horizontal and longitudinal shearing units, etc.

Taizhou Jiangyan Haili Hydraulic Machinery Manufacturing Factory is a professional manufacturer of metal bellows and roller wave machine equipment. It has been engaged in the research and manufacturing of related production equipment for more than 20 years. With excellent production equipment and unique production technology, it manufactures customer-satisfied products, which are sold domestically and abroad and have a high reputation.