Mr. Bao Jingsheng specializes in all types of blasting design and construction www.bjstzbp.com, including metallurgical furnaces blasting, demolition blasting, blasting a large earthwork, and special blasting static blasting, has 20 years of industry experience. Since its establishment, the company completed the metallurgical furnaces blasting, demolition blasting, large earthwork blasting, blasting static blasting and special projects, especially large-scale blasting success rate of 100%. Has always been to high-efficiency, high-quality, high standards and strict demands on themselves, successful completion of the construction task, by the praise of the community. Smooth blasting and pre-split blasting, technical measures to achieve smooth blasting in two ways: First, the excavation to the slope or contour line, the reserve artillery hole spacing layer thickness is about 1.2 times the rock, in the borehole loaded low-power small drug volume, so that the drug volume and pore walls maintain a certain gap, after half a cannon blasting can leave marks on the bore hole wall; Another method is the first in the slope or contour line intensive drilling and blasting holes in the wall parallel to the first detonation gun to form a hole along the centerline of the fracture surface, when to block the main blasting seismic wave propagation, but also cut off the damaging effects of stress on the retention surface wave of rock, usually called pre-split blasting. This blasting effect, both in the formation of glossy or protective rock stability, better than smooth blasting, tunnels and underground powerhouse and road cutting and excavation blasting technique commonly used in engineering. The company will carry forward the "solidarity, innovation and creativity, scientific objectivity, Yong-class struggle" professionalism, implementation of the "integrity of the law, civil construction, safety and environmental protection, harmonious and orderly, continuous improvement, the pursuit of excellence" management approach, adhere to the technology guide, service of survival, innovation and development, to enhance their market competitiveness and brand strength, willing to extensive contacts with friends and the community, sincere cooperation, mutual benefit and create success. Contact: Bao Jingli Tel: 13837206749 Zhongqi