ZJBV's Control Valve and Ball Valve for Ningxia Jinghe Energy CO.,LTD, qualified factory!

On June 27, 2016, our ZJBV's products Hydrogenation Using High Configuration of Double and More Ladder Step-down Pneumatic Control Valve and Hard Seal Pneumatic Piston Type O Cut-off Ball Valve for Ningxia Jinghe Energy CO.,LTD, qualified factory.