Luoyang Gongyan Technology Co., Ltd(for short GY)established in 2008, is a specialized manufacturer and distributor of rock bolts and other tunneling & mining products. Our company has the production capacity of 20, 000 sets of bolts per month.Our main products are Common hollow grouting bolt, Pre-stressed hollow grouting bolt, Self-drilling hollow grouting bolt, Combined hollow grouting bolt, Full thread pipe shed and steel pipe. GY also supply geo-technical materials such as waterproof board, geo-textile, geo-membrane, geo-grid, geomat, corrugated pipes, expansion rubber and steel fiber. The products are widely used in various types of underground support constructions, such as road and bridges, water conservancy project, mineral exploration, underground mining in soft and hard rock, tunneling, slope stabilization industry and etc.During the past 6 years, we have participated in lots of latest national key projects in China. And gradually we have been one of the most credible manufacture in the industry. Further, we have established steady business relations with customers inland and overseas.Our products always insist on the propose of quality first. According to our corporate philosophy "customer first, quality-oriented", now the quality of the production has been put into the central part of company's internal management. In future we will go on service our customers with reliable quality and competitive price.