Daqing Kefeng Petroleum Technology Development Co. Ltd

Business scope including petroleum machinery equipment, metal structure, the electric heat tracing system, built-in heating device, the electric heating tube, skin heating device, the variable-frequency electric heating device, automatic control equipment, electrical facilities, electrical equipment, environmental equipment, automatic cleaning equipment, recycling equipment, small machinery, water treatment equipment research and development, production, processing, maintenance and sales;Production and sales of transformers, frequency converters, dirty oil and sewage recovery devices, negative pressure environmental protection recovery devices;Sales of chemical products (excluding dangerous chemicals), building materials, thermal insulation materials, plastic products, environmental protection products, electrical equipment, petroleum mechanical equipment and accessories, wires and cables, valves, steel, instruments and meters, underground tools, rubber products, hardware products, off