About Us

·Company Name: Ningbo LYHY Mechanical & Electrical Technology Co., Ltd. ·Background: The brand originated in 1998, and the company was officially registered in 2014. Located in the Jishan Industrial Park, Fenghua District, Ningbo City, it is a national high-tech enterprise and a technology-based SME specializing in the R&D and manufacturing of pneumatic fittings and components. ·Address: No. 155, North Ring Road, Jishan Industrial Park, Xikou Town, Fenghua District, Ningbo City, Zhejiang Province ·Core Business: Specializing in the R&D and production of quick‑connect pneumatic fittings, quick‑tightening fittings, nickel‑plated copper fittings, stainless steel fittings, throttling valves, check valves, silencers, PU/PA air hoses, and a full range of pneumatic pipeline accessories. With self‑operated import and export rights, the company serves both domestic industrial supply chains and overseas export orders, offering standard products as well as one‑stop OEM/ODM customization solutions. ·Product Application Fields: Widely used in automation equipment, packaging machinery, medical devices, printing, welding, rail transit, electronics, automotive equipment, construction machinery, and other industries, with products suitable for diverse operating conditions worldwide. ·Corporate Qualifications: Certified under the ISO 9001 quality management system and holding multiple structural patents; products comply with export‑related environmental standards such as RoHS; implements 5S lean production management, is a general taxpayer, and can provide complete customs clearance documentation for international trade.

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Product
Patent Certificate
A circumferentially locked screw-in straight connector
A circumferentially locked screw-in straight connector
A circumferentially locked screw-in straight connector
A new type of quick-connect G-thread straight connector
A new type of quick-connect G-thread straight connector
A new type of quick-connect G-thread straight connector
A PC threaded straight connector with excellent airtightness
A PC threaded straight connector with excellent airtightness
A PC threaded straight connector with excellent airtightness
A pneumatic L-shaped threaded elbow
A pneumatic L-shaped threaded elbow
A pneumatic L-shaped threaded elbow
A throttle valve with a multi-stage sealing structure
A throttle valve with a multi-stage sealing structure
A throttle valve with a multi-stage sealing structure
A reinforced, sealed three-way connector
A reinforced, sealed three-way connector
A reinforced, sealed three-way connector
A high-flow cartridge-type standard unidirectional throttle valve
A high-flow cartridge-type standard unidirectional throttle valve
A high-flow cartridge-type standard unidirectional throttle valve