Zhaoxin Industry & Trade Company, Ltd. of Dongying City is located in the hinterland of beautiful Yellow River Delta--Dongying City normally called “ Petroleum City”. The company, which conducts scientific research, development, manufacture, sale and after sale service, is one enterprise for oilfield tool and equipment manufacture. At Shengli Industry Area, the company was established in 1999. It has owned more than 3000 square meters of workshops which manufacture different oilfield down hole tools and accessories such as fracture packer series, sand blast, fracture hydraulic anchor. The products of company have been widely applied in oilfields in China and entered markets abroad. The company conducts management mode of combination between regulation and humanity, develops perfect m..