We own Shandong Yanggu Wonderful Valves Co., Ltd. and Yanggu Dakin Cable Co., Ltd. two factories, specializing in gas cylinder, valves, and cable. We cooperate with other factories directly, supply the lowest price based on best quality Shandong yanggu wonderful valve co.ltd. is a specialized manufacturer of valve regulators for industrial gases and CNG.we have the right to import and export,and export to Europe,America,Middle East, and Southeast Asia. The company has a huge contingent of ...