About Company
Your ISO-Certified Copper Fittings Manufacturing Partner

Founded in 2011 and headquartered in Shaoxing, Zhejiang — one of China's premier manufacturing regions — Shaoxing Rongdi Mechanical Co., Ltd. is a National High-Tech Enterprise dedicated to designing and manufacturing precision copper pipe fittings. We serve leading HVAC and refrigeration brands worldwide with consistent quality, competitive pricing, and responsive service.

  • ISO 9001 Certified
  • National High-Tech Enterprise
  • Multiple Patents
Get a Quote Within 24 Hours
OEM & ODM Services
Custom Copper Fittings, Built Around Your Specifications

Since 2011, we have helped global HVAC brands turn drawings and samples into reliable, mass-produced copper pipe fittings. Share your requirements — our engineering team responds with drawings and quotation within 24 hours.

  • 01

    Submit Drawings or Samples

    Send us your CAD files, technical drawings, or physical samples. We accept all common formats and can work directly from your specifications or reverse-engineer from a sample.

    CAD / DWG Files Physical Sample Reverse Engineering
  • 02

    Engineering Review & Drawing Design

    Our 50–80 person technical team reviews feasibility and delivers optimized drawings within 24 hours. DFM suggestions, material recommendations, and cost estimates included.

    24h Drawing Response DFM Optimization Cost Estimate
  • 03

    Sample Production & Approval

    Pre-production samples are manufactured and 100% inspected before shipment. Free samples available for qualified projects. Tooling fees are refundable against your first bulk order.

    Free Samples 100% Pre-Shipment Inspection Tooling Refundable
  • 04

    Mass Production & Delivery

    Two dedicated factories, 200+ skilled workers, and complete production lines ensure stable quality and on-time delivery. FOB/CIF/EXW terms supported via Shanghai & Ningbo ports.

    2 Factories, 200+ Staff 15–25 Days Lead Time FOB / CIF / EXW
OEM & ODM Services
Trusted By
Global HVAC Brands That Source from Rongdi
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Company Advantage
why choose RONGDY
We are a professional refrigeration spare parts supplier to meet all your demands and service with more than ten years of production experience.
  • Factory
  • Team
  • Quality
  • Service
Our factory focuses on developing, designing and manufacturing various slip rings and 360° rotation solutions.
  • ● Since 2011
  • ● Two factories
  • ● 200+ Employees
  • ● Products to 120+ countries
About More
Being rich experienced, our team covers the needs of slip ring customization, featuring for:
  • ● 50-80 technicians
  • ● Fast design (drawings available within 24 hours)
  • ● Flexible program- customized for different industries
  • ● Lean management, competitive price, 5%+ lower than competitor
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ISO9001, SGS, CE, FCC, RoHs, GJB9001A Certificated
  • ● Reliable raw materials - imported from critical material imported
  • ● Highly guaranteed quality - with 20%+ life span higher than average
  • ● 100% inspection before shipment
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We serve every customer with craftsman spirit
  • ● Full-time docking personnel
  • ● 7*24 hours fast response
  • ● Free sample delivery
  • ● 6 months free replacement
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Company News
Our Latest News
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