JOINTIB CO., LTD is a leading manufacturer and supplier devoted to the pipe rubber expansion joints design and production in China.Since its foundation in 1989, the world has witnessed the rapid development of GYLDT. It has been among the earliest ranks to make rubber joint, and obtained a patent for making reducing flange connection in 1991, a patent license for developing rubber butterfly valve in 1996, and made advanced soft-sealing check valve in 1999. In 2002, it innovated the producing process of rubber joint to reach the international level.By strictly adhering management innovation, and insisting quality control, JOINTIB has got a series of official permission due to its effective management. First, our products got a permission to be used as drinking water; then our company was named as the "China Green Star" as well as obtained ISO9001-2000 Quality System Certification in 2010; and it also won certification from Environmental Management System and Occupational Health and Safety Management System in 2012. With our insistent endeavors, GYLDT never stops to delicate best products for every customer!