Street Address: Shengli Industrial District
City: Dongying
Province: Shandong
Country/Region: China
Shengli Oilfield
Aimed at pump rod break, stripping, piston dropping without opening oil drainage unit during operation of oil well, no ordinary oil drainage achievement in heavy oil and paraffin troubled well, environment pollution and so on, rotary oil drainage unit is the patent product (Patent No. ZL2005200845803) specially designed and developed. It has advantages of simple structure, easy operation and reliable oil drainage, etc.