长沙黑金刚实业有限公司是中国专业从事凿岩机械和风动工具研究与制造的著名民营企业。公司有丰富的科研和生产经验，采用最优质的原材料，通过先进的生产工艺和严密的检测手段，生产出性能优良、质量过硬的产品。“黑金刚”牌钻具由于质量稳定、性能优良而畅销全国，并批量出口到美国、法国、澳大利亚、加拿大、马来西亚、韩国等20多个国家，深受用户好评。

公司位于雷锋故乡—湖南望城，占地15000平方米，生产厂房3500平方米，员工200多人，有生产凿岩机械与风动工具的全套设备。自行设计和制造如下产品：中国最先进的高风压潜孔冲击器；各种潜孔钻头；在覆盖岩层和松散岩层中用于跟管钻进的偏心钻具；各种螺纹钻头；钎尾和联接套；各种联接头、钻管和凿岩机械配件等。这些产品能与阿特拉斯、英格索兰、山特维克等世界著名制造公司生产的产品相配套，广泛应用于土石方工程、矿山开采、水井工程和建筑工程等工地。

面向未来，我们“黑金刚”人将一如既往秉承精益求精、开拓进取的传统，以更加优质的产品、更合理的价格，及时准确地向广大用户提供至诚至信的服务，从而使广大用户获得最理想的效益。我们相信，我们的努力会让很多人需要我们！

Introduction

Changsha Heijingang Industrial Co.,Ltd is a famous privately operated enterprise specialized in research and manufacturing rock drilling equipments and pneumatic tools. The company has rich experience in the researh,

development and manufacture which adopted high-quality raw materials, advanced craft technology and passed through strictly inspection, manufacturing high quality rock drilling products. The products made by the Changsha Heijingang have spread all over the County, and exported massively to more than 20 countries .For example USA、France、South Korea、Australia、Canada、Malaysian and so on..

Changsha Heijingang Co.,Ltd is located in The Leifeng’s hometown—Wangcheng, Hunan, with land area of 15000 m2, the workshop 3500 m2 and more than 200 workers and staff. We are equipped with wide rang of advanced equipment required for manufacturing rock drilling machine and pneumatic tools. Independently designs and makes the following products: the most advanced high air pressure DTH hammer in China; all kinds of DTH bits, eccentric drilling equipments for simultaneous drilling and casing through overburden and loose rock formations; all kinds of threaded drilling bits; shank adapters and coupling sleeves; all kinds of tool joints and drill pipes, spare parts for drill rig. All products are interchangeable with various products manufactured by Sandvik, Ingersoll-Rand, Atlas Copco etc, all our products are widely used in mining, tunneling, quarrying, construction, and civil engineering project.

Facing future, we will work hard to manufacture and supply better products and after-sale service at more

competitive prices to help customers to get best economical efficiency. We believe that our endeavor will let more people need us.