Testing Equipment


Science and technology are the primary productive forces, and science and technology promote civilization and development.
Longkou City Sealing Materials Research Institute, is a subsidiary of Longkou Yulong Sealing Materials Co., Ltd. specializing in the research and development of sealants.
Ensure that the company's bad reviews are constantly updated, always meet the special requirements of customers for product performance, continue to develop, grow, grow, and improve, and strive to build our institute into a high-tech sealant research base.

Yulong Polymer
Yulong Polymer
Yulong Polymer
Yulong Polymer
Yulong Polymer