About Us
Founded in 1980 as Fenghua Weilong Shock Absorber Factory, our precision manufacturing journey spans over 40 years. We completed corporate restructuring in 2009 and officially established Ningbo Bolong Machinery Co., Ltd.
Headquartered in Fenghua Coastal New Area, our 20,000 m² production plant employs more than 300 professionals. We deliver custom high-performance metal parts manufactured strictly per client drawings and technical standards, serving six core vertical markets:
🚗 Automotive & New Energy Vehicles
☀️ Energy Storage, Wind & PV Power
🚜 Construction & Agricultural Heavy Machinery
⚙️ Industrial Automation & Precision Transmission
🚆 Rail Transit
🚢 Marine & Offshore Equipment
We are part of the global automotive supply chain through our Tier 1 partnerships, with our components integrated into vehicles produced by leading North American, European, and Asian automotive brands. We also maintain direct cooperative ties with BYD, China's top new energy vehicle manufacturer.
Our comprehensive certification portfolio includes IATF 16949, ISO 14001, ISO 45001, ISO/IEC 27001, GB/T 29490 and IECQ HSPM QC 080000. We own 46 invention and utility patents covering core machining techniques and mold innovations, demonstrating our independent engineering strength.
In-House Process Chain
30+ Engineers / 2 R&D Centers
IATF 16949 · Military Grade QC
Our History
Our Products
1.Automotive chassis damping components – precision bushings, aluminum and steel fork shafts, and custom complex-profile parts
2.Automotive air suspension components – air suspension pistons and upper air chambers
3.Automotive clutch system components – inner and outer clutch hubs, and end covers
4.New energy vehicle (EV) components – structural parts for prismatic/blade-type battery packs, power battery assemblies, and relay components
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