The main features of the electric valve hall maintenance vehicle HL-275E25 produced by Hollandlift company are: "Large load, large platform", load capacity is 1000 kg, extension part also carries 1000 kg, power source is configured with large capacity battery, full-scale control technology, Rough non-trace large tire, with its own patented overload limit system, is an electric valve hall maintenance vehicle widely used in military, scientific research institutions and power companies.