Gongyi Liangda Tubes Co., Ltd (GYLDT)

GYLDT CO., LIMITED is a leading manufacturer and supplier devoted to the valves and pipe fittings design and manufacture 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 expansion joints. 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 expansion joint to reach the international level. GYLDT began to manufacture duckbill check valve and innovated its producing process in 2006, and the newest plate bearing compensator has been developed since 2009.