Watch as we walk through the full process of wall-hung gas boiler manufacturing at Foshan Shunde Dongyuan gas appliances Ind. Co., Ltd. From mold design and precision machining to final testing, see how our five automated production lines and 23 years of R&D expertise deliver high-quality, energy-efficient boilers. We also showcase our condensing gas boiler with up to 105% thermal efficiency, and explain how our ISO-certified quality control ensures compliance with CU-TR and European standards for markets like Russia, Iran, and the Middle East.