Profile: Liaocheng Goldmine Building Materials Co., Ltd. specializes in the research, development, production and trade of concrete vibrators, flexible hoses, shafts & accessories. Our ZN25 concrete vibrators are available in the diameter of 25mm with a length of 478 mm. They weigh around 7 kg with 4 m hose. We produce flexible shafts for various purposes. We are fully equipped with various advanced test and monitoring facilities. We also export our products to various countries worldwide.