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PRE-SALE SERVICE
TEL：0086-453-6293088
EMAIL：info@sj-drilling.com

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AFTER-SALE SERVICE
TEL：0086-453-6293557
EMAIL：feedback@sj-drilling.com

HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO., LTD.

HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO., LTD.

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HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO., LTD.

PRODUCT STANDARD: API SPEC 7-1、API SPEC5CT、API SPEC DP

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PRE-SALE SERVICE：086-453-6293088 AFTER-SALE SERVICE：0086-453-6293557 EMAIL：info@sj-drilling.com

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EMAIL：info@sj-drilling.com

TEL：0453-6293088

FAX：0453-6293789

POSTCODE：157013

ADDRESS：No.56 Xingye Road, Yangming District, Mudanjiang City, Heilongjiang Province, China.

HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO., LTD.

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