Tubes, tube fittings,metal tubes,tube fitting,sucker rod coupling,sucker rod,coupling
Yantai Yunsheng Petroleum Machine Accessories Co., Ltd, founded in 1997, is a professional manufacturer producing API approved sucker rod couplings, includin Spray Metal sucker rod coupling, calss T sucker rod coupling, Sub OD sucker rod coupling, Full size sucker rod coupling and Slim Hole sucker rod coupling,with the size range of 5/8", 3/4", 7/8", 1" 1-1/8". Materials is AISI 5140¿Monthly production capacity reach to 20,000pcs.All of our products are excellent in quality and low in price.