Heilongjiang North Shuangjia Drilling Tools Co., Ltd.

Heilongjiang North Shuangjia Drilling Tools Co., Ltd. has been in business since 1946, giving them decades of experience in manufacturing hydraulic and fishing tools — a strong signal of reliability and proven product performance. Their long history suggests they have weathered market changes and likely have stable supply chains for these specialized tools. However, none of their key verification details — work email, phone number, or business documents — are confirmed, which raises concerns about identity and legitimacy. Buyers should request additional proof before placing large orders or sharing technical specifications. Without verified contact or documents, it's harder to verify their real-world operations or respond quickly to urgent inquiries. This lack of verification is common among older Chinese suppliers, but it still requires extra due diligence to reduce risk.