Large‑capacity Gas Water Heaters
OEM / ODM Source Factory
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Quality Control

ISO9001 Quality Management System

The company strictly implements the ISO9001 quality management system, deeply integrating core requirements of process control, record management and continuous improvement into six digital management systems. From product R&D, supply chain management, manufacturing to quality inspection and after-sales service, every business link has standardized processes, systematic records and full traceability. Standardized management replaces reliance on manual experience to ensure long-term stability of product quality.

3C Mandatory Certification Compliance

As one of the first enterprises in the industry to pass 3C mandatory certification, Zhongshan Yangzi integrates compliance requirements throughout the entire product lifecycle.

R&D & Design: We align with 3C certification technical requirements at the product design stage to avoid R&D deviations.

Core Components: Key components such as gas proportional valves, oxygen-free copper water tanks and safety protection devices 100% meet certification standards.

Production & Inspection: 100% online inspection for key processes. All certification procedures are completed independently with full transparency, strictly prohibiting agency outsourcing.

Multi-dimensional Testing System
The factory is equipped with dedicated testing equipment for gas leak detection, water leak detection, combustion performance testing, etc. Every unit must pass multiple strict tests before leaving the factory.