WEIMA.WEIMA was established on November 22, 1994, with its registered office in Jinan City, Shandong Province. It is a company specializing in the research, development, and technical services of oil and gas lifting equipment. WEIMA utilizes German SAP-ERP manufacturing software and implements microcomputer control systems. WEIMA has established over 10 corporate standards and has successively obtained ISO9001 international quality system certification, ISO14001 and OHSAS45001 management system certifications, as well as API certification from the American Petroleum Institute. Hydraulic jacking units, surface-driven screw pumps, double-acting pumps, complete submersible screw pump production systems, complete submersible electric pump production systems, complete submersible direct-drive screw pump production systems, complete reciprocating submersible plunger pump production systems, complete liquid-driven rodless production systems, complete forced gas lift production systems, oil pump accessories, valve ball seats, valve caps, Rod-type pump top double-seal support assemblies, ferrules, mechanical support seats, seat rings, internal thread piston closed valve caps, tubing couplings, support seat rings, piston upper open valve caps, internal thread piston closed valve caps, oil pumping equipment.