Yantai Sanmon Machinery Equipments.,Ltd.,founded in 2010,is professional on supplying petroleum machinery and tools. Our company locates in Yantai seaside city,with convenient transportation for Ocean,Land and Air. The company has senior technical staffs ,professional production factories,and excellent sales team,with careful co-ordination and unified management. Our product covers sucker rod, sucker rod pump,pump unit,tubing,casing,wellhead equipment s , pumping fittings and so on.All the products quality approval of API 11 B,API 11AX,API 5CT,API 6A .