الوصف

Mainly used for electric power, metallurgy, coal mine, etc., and electrification vacuum oil-replenishment for on-working oil-filling device, and vacuum oil-filling or replenishment for after-examination and repair oil-filling device, and especially for filling or replenishing oil for under **0kv oil-immersed transformer and metal expander, as well as providing vacuum for electric power equipment and non oil-fill device.