清波、碧浪，远眺如烟；巍巍望儿山，枕水渤海湾！大成金刚石工具厂就诞生在这美丽富饶的祖国辽南营口经济技术开发区。企业创始人衣佩成先生系统的高等教育，多年的生产实践、技术管理和行政管理工作经验，塑造了他有峰必攀，知难而进的工作作风。以攻克技术难点为荣，以确保产品质量为己任，让用户满意为宗旨的思想理念，已成为大成员工的行为指南和企业经营纲领。
   企业生产的XJL-42罗盘测斜仪；金刚石地质钻头及配套的扩孔器；复合片钻头；电镀钻头；异形金刚石工具等系列产品以其专业性强，技术含量高，质量性能可靠等优势，不断受到用户的青睐。
   The clear and blue waves look like the mist,if seen far away.The famous Wang'er Hill is just near Bohai harbor.Dacheng Diamond Tool plant is established in Yingkou economic-technology developing zone in southern part of Liaoning province,China.Mr.Yi Peicheng,the founder of this enterprise determined to clime any mountains and never stop advancing despite any kind of difficulties because of his advanced education,solid experience in military weapon producing,technology management and administration works.All employees in Dacheng group take pride in overcoming technological difficulties,put the quality assurance as their first priority,and do everything possible to meet customer's needs.All this above-mentioned serve as their working guideline of Dacheng group.
   All the products in this company such as XJL-42 slanting measurement of compass,geology bore bit of diamond and its supporting reamer,dimorphism diamond and its series production enjoy good reputation among its customers.