Certifications of Our GFS Tanks

As the first manufacturer of Glass-Fused-to-Steel (GFS) bolted storage tanks in China, Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) takes pride in the rigorous certifications our products hold. Our GFS tanks and glass-lined steel tanks are certified to ISO 9001, CE, NSF/ANSI 61, WRAS, ISO 28765, LFGB, BSCI, ISO 45001, and other renowned international standards. These certifications reflect our commitment to quality, safety, and environmental responsibility across all applications.