Lianyungang Huanghai Machinery Co., Ltd. is a manufacturer who designs and produces geological exploration equipments, coal bad methane equipments, engineering foundation equipments and horizontal directional pipe construction equipments as well as their drilling tools. It is one of the new and high tech enterprises in Jiangsu Province. The company covers an area of 190,000 square meters with 60,000 square meters building area. There are six hundred employees, more than one hundred technical persons and more than four hundred production equipments in the company.