WEFIC and KERUI PETROLEUM are one of the largest manufacturers and service providers for the oil & gas industry specializing in research, design, and, manufacturing of high-end petroleum equipment products, including onshore and offshore drilling/ work-over rigs; large oilfield fracturing units; special operation equipments such as coiled tubing units, cementing trucks and nitrogen units, natural gas compressors, oil and gas production and processing systems, natural gas liquefaction units,  wellheads, well control systems and oil production machineries.