Profile: Zhengzhou LD Diamond Products Co., Ltd. is a manufacturer of polycrystalline diamond products. Our products are widely used in oil/gas drilling, geology exploration, mining, metal and hard material machining industries. Our PDC bit is a drilling tool which consists of PDC cutter brazed to matrix or steel body. The PDC cutter has hardness, abrasion resistance and toughness, and provides a cutting structure for rock formations. Resin bond diamond grinding wheel has self-sharpening, elasticity, polishing, and grinding efficiency. We also offer vitrified bond grinding wheels, PDC bits and PCD cutters. We are an ISO 9001:2000 certified company.