Step inside Henan Guojiang Precision Formed Head Co., Ltd., a leading Chinese manufacturer of precision dished heads since 2013. This factory tour showcases how ASME-certified, mirror-polished tank heads are engineered—from laser cutting and hydraulic pressing to polishing, heat treatment, and NDT. See real production of cryogenic Dewar heads, MRI closures, and custom heads up to 10,000 mm diameter, and learn how in-house quality control delivers flatness within 3 mm and surface roughness within 0.4 μm for global B2B clients.