Gongyi City Liangda Tubes Co., Ltd

Gongyi Liangda Tubes was established in 1985. Its former name is Gongyi Changfen village Mechanical Factory. In 2007, it was transformed into a limited liability company (Gongyi Liangda Tubes Co., LTD, and GYLDT LTD for short). Since its foundation, our company is specialized in the products of rubber check valves (duckbill valves), steel expansion joints, rubber expansion joints,flexible rubber joints etc.

We apply ourselves to the design and production of valves and pipes fittings. And we have the capacity of advanced design, development, and supply. We can design products by the request of customers. As a result, we have received a favorable reception of our cooperative partner for many years.

We have begun to make and design the rubber expansion joints since 1986. And in 2003 we produced the duckbill valves ?????tent Number?????2003 2 0113496.0????? the country. The duckbill valve has passed the quality inspection report (JJ2007018 Gongyi Technical Supervision Bureau). Therefore, we have maintained the leading position in rubber check valves (duckbill valves) and rubber expansion joints at home. In 2007, we first produced curved duckbill valve (180 degrees turn) in China, filling the domestic blank.

Our company owns 3 large high temperature vulcanization cans, 7 small high temperature vulcanization cans , 2 stereotype cabinets, 1 large steam curing equipment (2 tons), one small steam curing equipment (0.5 tons) , 6 lathes, 2 drill presses, 1 planer, 1 milling machine , and 9various welders machines. In order to guarantee the quality, our company gets a set of rubber joint pressure testing machine, which can test DN50-2400 rubber joint, and a set of flexible connectors pressure testing machine, which can test all DN50-2400 joints. In addition, our company specially designed 1 testing machine of duckbill valve with the leading position in China.

Leading technology innovation, advocating good quality.  Liangda, develops with you hand in hand.