Oilfield equipment manufacturers in Gyproc manufacture equipment used for extracting crude oil from the ground. Establishing a manufacturing unit that produces oilfield equipment requires huge amount of investment in terms of money and human resources. Such manufacturers hire expert professionals to design the equipment. They employ large number of engineers and other experts to design the best equipment. Companies manufacturing oilfield equipment have to invest in large number of machines to manufacture the equipment. Such companies manufacture a variety of equipment, including drill pipes, drill collars, mud pumps and down whole equipment. A few manufacturing companies also manufacture engines that operate drilling equipment.