联科阀门有限公司（原温州市永中化工机械厂），创建于 1982 年，是一家集设计，研发，制造和销售型的企业，公司取得了*人民共和国特种设备制造许可证及管夹阀、衬氟阀门、金属阀门的型式试验报告证书，ISO9001:2015 质量体系认证，是中国工业防腐蚀协会会员单位，温州市橡胶商会理事单位，温州市泵阀协会会员单位，温州市龙湾区阀门行业协会理事单位，温州市质量技术监督协会会员单位。产品质量可靠，性能稳定，深受国内外用户的一致**。
公司现占地面积 6618 平方米，建筑面积 4850 平方米，员工95人，注册资金 5080 万元，组织机构健全，其中营销中心划分网络营销部、外贸部和实体直营店；生产中心包括管夹阀、衬氟阀、过滤器、金属阀门 4 个产品事业部；产品采用的标准有：API、DIN、JIS、GB、HG、SH、ASME 等，主要材质为各种不锈钢、铸钢、铸铁及铝合金。
公司主营工业管道流体过滤设备、防腐蚀管阀设备，专业生产管夹阀 、过滤器、衬氟阀门、金属阀门四大类产品，品种近百个。产品广泛应用于石油、化工、冶金、电力、医药、化肥、光气（剧毒）等行业。
公司秉承“以科技为创新，以质量为核心”的经营理念，坚持 5S 管理“内强素质、外树形象”，贯彻“客户**、员工第二、股东*三”的原则， 推行安全生产、文明生产、精益生产管理模式，将管理做实、将产品做精、将品牌做强。

The LIANKE VALVE（Former Wenzhou Yongzhong Chemical Machinery Factory） founded in 1982, It is an enterprise integrating design, development, manufacture and sales. The company has obtained the certificate of special equipment manufacturing license of the People's Republic of China、type test report certificate for the pinch valve、fluorine lined valve and metal valve、The quality system certification of ISO9001:2015。We are the member unit of the China Industrial Anti-corrosion Association、the member unit of Wenzhou Rubber Chamber of Commerce、the member unit of Wenzhou pump valve association、member of the valve industry association of Wenzhou Longwan District、the member unit of Wenzhou Quality and Technical Supervision Association. Reliable product quality and stable performance, It Has a good comments by domestic and abroad clients.
The company covers a total area of 6618 square meters, a construction area of 4850 square meters, an employee of 95 people, a registered capital of 5080 million yuan, and a sound organization structure, wherein the marketing center divides the network marketing department, the foreign trade department and the entity direct store; the production center comprises a pinch valve, a fluorine-lined valve and a strainer, 4 product division of metal valve; the standard for products is: API, DIN, JIS, GB, HG, SH, ASME, etc., and the main materials are stainless steel, cast steel, cast iron and aluminum alloy.
The company mainly engaged in industrial pipeline fluid filtration equipment, anticorrosive pipe valve equipment, specializing in the production of pinch valve, strainer, fluorine lined valve, metal valve four categories of products, nearly 100 varieties. Products are widely used in petroleum, chemical industry, metallurgy, electricity, medicine, chemical fertilizer, phosgene (highly toxic) and other industries.
Adhering to the business philosophy of "Take science and technology as the innovation and quality as the core", the company adheres to the 5S management "internal strong quality, external tree image", implements the principle of "customer first, employee second, shareholder third", promotes safe production, civilized production, lean production management mode, solid management, refined products and strengthened brand.