Standard: ISO9001:2015 Number: 03819Q00332R2S Issue Date: 2019-01-11 Expiry Date: 2022-01-26 Scope/Range: For the whole process of design, processing and sales of well completion petroleum machinery equipments（downhole tools) Issued By: WSF

Standard: API Monogram Number: 14A-0056 Issue Date: 2019-01-16 Expiry Date: 2022-01-16 Scope/Range: Subsurface Safety Valves Issued By: American Petroleum Institute

Standard: API Monogram Number: 11D1-0061 Issue Date: 2019-01-16 Expiry Date: 2022-01-16 Scope/Range: Packers at V6, V5, V4, V3 Issued By: American Petroleum Institute

Standard: API Monogram Number: 19G1-0018 Issue Date: 2019-01-16 Expiry Date: 2022-01-16 Scope/Range: Side-pocket mandrels-Functional Testing Grade: F1, F2, F3-Design Validation Grade: V1, V2, V3 Issued By: American Petroleum Institute

Standard: 环境管理体系 Number: 03820E02032R0S Issue Date: 2020-04-24 Expiry Date: 2023-04-23 Scope/Range: 完井石油机械设备（井下工具）的设计、加工和销售所涉及的相关环境管理活动 Issued By: WSF

Standard: 职业健康安全管理体系 Number: 03820S02033R0S Issue Date: 2020-04-24 Expiry Date: 2023-04-23 Scope/Range: 完井石油机械设备（井下工具）的设计、加工和销售所涉及的相关职业健康安全管理活动 Issued By: WSF

Standard: ISO9001:2015 Number: 03819Q00332R2S Issue Date: 2019-01-11 Expiry Date: 2022-01-26 Scope/Range: For the whole process of design, processing and sales of well completion petroleum machinery equipments（downhole tools) Issued By: WSF

Standard: API Monogram Number: 14A-0056 Issue Date: 2019-01-16 Expiry Date: 2022-01-16 Scope/Range: Subsurface Safety Valves Issued By: American Petroleum Institute

Standard: API Monogram Number: 11D1-0061 Issue Date: 2019-01-16 Expiry Date: 2022-01-16 Scope/Range: Packers at V6, V5, V4, V3 Issued By: American Petroleum Institute

Standard: API Monogram Number: 19G1-0018 Issue Date: 2019-01-16 Expiry Date: 2022-01-16 Scope/Range: Side-pocket mandrels-Functional Testing Grade: F1, F2, F3-Design Validation Grade: V1, V2, V3 Issued By: American Petroleum Institute

Standard: 环境管理体系 Number: 03820E02032R0S Issue Date: 2020-04-24 Expiry Date: 2023-04-23 Scope/Range: 完井石油机械设备（井下工具）的设计、加工和销售所涉及的相关环境管理活动 Issued By: WSF