Langfang Zhongyide Petroleum & Gas Equipment Co., Ltd. is the professional manufacturer pipeline equipment in China, and we have our own patent products, including set-on geotixible bag weight, cathodic protection test pile, casing insulator, pig, foam cleaning pig warning strip. ...

Our company is established in 1989.its belonged to yueqing techenology commission underline enterprise before-yueqing jinyu motor research institude. At present our have car,milling machine,grind,line cutting etc big,middle model high exactitude process machineries more 100 ...