.钻王科技有限公司(廊坊)King-drilling Engineering Science & Techniques Limited Company (Langfang)King-drilling Engineering Science & Techniques Limited Company (Langfang), which is located in Tsinghua science & technology park, Langfang economic and technical development zone, Hebei province, 37km to Beijing, and 3km to jing-jin-tang high way.For many years, our company contributes all heart to the Chinese drilling industry, has become the leader of the realm. Our company presents first rat
