良固阀门集团股份有限公司

The group's headquarters is located at No. 32 Gangqiang Road, Airport New Area, Longwan District, Wenzhou City. It currently operates three major manufacturing bases in Wenzhou, Lishui, and Qingtian, along with two proprietary casting and forging factories. The headquarters covers an area of 25 acres, the Lishui production base spans 150 acres, and the Qingtian base occupies 50 acres. After more than three decades of innovative development, the group has evolved into a joint-stock corporation integrating design, R&D, manufacturing, and sales. The company employs over 1,000 staff, including nearly 200 R&D and technical personnel. It boasts specialized production workshops, systematic large-scale CNC machining centers, automated horizontal machining centers, large gantry vertical lathes, fully automatic welding machines, and complete streamlined operation platforms.
In 2022, the group's total supply chain output value reached 1.587 billion yuan, with tax contributions of 42 million yuan. Main business revenue amounted to 1.55 billion yuan, with R&D investment accounting for 3.6%.
The group's leading products cover 10 major categories, 70 product series, and 300 varieties, primarily applied in industries such as petroleum, natural gas, coal, salt, alkali, chemicals, thermal power, biology, environmental protection, metallurgy, power plants, oil and gas storage and transportation, shipping, and water systems. The company is a designated qualified supplier for ENN Gas, China Gas, Beijing Gas, Kunlun Gas, Aode Gas, Towngas, China Resources Gas, the five major power groups, China Energy Investment Corporation, PetroChina, Sinopec, and CNOOC. It is also an appointed unit of the former Ministry of Chemical Industry, a supplier for the China National Chemical Group, a qualified supplier for Yanchang Oilfield, a qualified supplier for the Ningxia Water Resources Department, a member of the PLA Weaponry Equipment Information Network, a qualified supplier for CNNC, and a recommended product member for engineering construction.