As a trustworthy manufacturer of skid-mounted system for oil and gas, ZJJLZK specializes in the design, manufacture and supply of various industrial valves to control fluid flow in piping system, as well as provide skid-mounted solutions for water & gas injection, flow metering and oily wastewater treatment. Over the years, ZJJLZK has earned the trust of our customers with our professional expertise in design and fabrication of custom manufactured skid mounted systems, such as crude oil metering skid, water injection skid, skid-mounted wastewater treatment system, etc. We continue to strive to maintain the highest standard of quality flow control valve and skid-mounted equipment by constant growth and improvement in aspects of design, development, manufacturing, installation and service.