API 11B Polished Rods

Polished rodThree types of polished rods are available: conventional grade D polished rod,Website:http://www.petroleum-machinery-china.com, one end diameter enlarged polished rod and high-strength, long stroke, corrosion resistant polished rod. All the polished rods are made of quality alloy steel and machined by using the advanced machining technology with high strength, smooth surface and long service life. All types of the polished rods are API and ISO9002 certified. ?  Specifications of Conventional grade D Polished RodModel900800700600Stroke length m (ft)7.3 (23.95)7.0 (22.96)6.0 (19.68)5
API 11B Polished Rods