Ensure that the valve is completely sealed in both directions; Valve body and valve plate finishing, small torque, long service life; Three bearings on the stem prevent the stem from bending and ensure optimal use; Can be installed in any position; Valve body maintenance-free, Removable, recyclable material. The products are used in chemical and petrochemical industry, water treatment and sewage treatment technology, gas treatment technology, shipbuilding, energy engineering, food industry, municipal engineering, non-silicon surface painting treatment, new energy lithium battery industry. Meets GB/T 122382008/EN 593 standard. Different materials can be selected according to the application situation of different industries.