No.228,Nanyi Road

Dongying Kangyu Petroleum Engineering Technology Service Co.,Ltd located in the Yellow river delta city-Dongying City, the base of the second largest oilfield in China, Shengli Oilfield. The company&a...

hekou economic development zone

Dongying Haixin Petroleum Equipment Co., Ltd. (hereinafter referred to as Haixin) is situated in the hinterland of the beautiful and rich Yellow River Delta, registered with 3 million RMB capital, pos...