This supplier has been verified onsite by world-leading inspection company,
TüVRheinland
世界有数の検査会社が現地で検証、 TUV Group
2024.01.02
製品レビューStorm Test & Sound Insulation Test
DERCHI window and door manufacturer which is one of top 10 windows and doors in China. We supply high quality aluminum doors and windows with professional team for more than 25 years.