Chaiman Machinery (Shanghai) Co., Ltd. is engaged in the sales of air compressors, oil-free water-lubricated screw air compressors, permanent magnet variable frequency oil-free screw air compressors, low-pressure oil-free water-lubricated screw air compressors, medium-pressure oil-free water-lubricated screw air compressors, oil-free screw air compressor maintenance, micro-oil screw air compressors, two-stage compression screw air compressors, portable screw air compressors, and related maintenance, repair, and accessories, as well as auxiliary equipment such as refrigerant dryers and precision filters. The air compressors sold by Chaiman Machinery (Shanghai) Co., Ltd. are widely used in industries such as high-speed rail, ships, construction, water conservancy, factories, mines, mining, instrumentation, oil, and chemical industries, as well as other applications that require compressed air power, such as pneumatic tools, clamping devices, automatic control, sandblasting, painting, ...