Yantai Yunsheng Petroleum Machine Fittings Co., Ltd. is a modern high-tech enterprise specialized in manufacturing petroleum machine accessories--sucker rod coupling. The company can itself research and develop to produce the Deflection-proof and Abrasion-proof Sucker Rod Coupling, Common Coupling and Sub couplings, which have passed the ISO9001 and API SPEC11B Quality Management System Certifications, Industrial Production Permit of China, and Import & Export Licence. The excellent value for money makes Yunsheng Petroleum Machine Fittings enjoying high and long-standing reputation home and abroad.
ProductsKeyword
couplings, sucker rod couplings, sucker rod joints, sucker rod connectors, sucker rods, pony rods , polished rods