After more than 40 years of development, Shuangjia Company can now process and produce more than ten series, hundreds of varieties, and thousands of specifications of products. The products are widely used in major domestic oilfields and international markets, and can provide technical and OEM services...
EMAIL：info@nsj-drilling.com
TEL：+86 4536293088
FAX：0453-6293789
POSTCODE：157013
ADDRESS：No.56 Xingye Road, Mudanjiang City, Heilongjiang, China.
©2021 Heilongjiang Northern Shuangjia Drilling Machinery Co., Ltd. Hei ICP No. 16001467-3
