Supplier profile
Tianjin Sien Machinery Equipment Co., Ltd.
Binhai New Area · Tianjin · People's Republic of China
Company overview
Generated from certificate recordsThe recorded product scopes include Blind and Test Flanges; Hot Formed Bolts and Screws; Hot Formed Nuts; Roll Threaded Studs, Bolts, and Screws; Studs. Consult each complete certificate scope for its activities and limitations.
The listed certificates include product licenses for API-20E; API-20F; API-6A. These records are marked Active by the source.
This overview follows the certificate records on this page and covers the listed facility.
View supporting records (3)
These records were checked for this overview. Records with date concerns are excluded from the scope and standards summary. Open a record to review its full scope, dates and source wording.
Products & certifications
Based on certificate scope. Confirm specific models, availability and lead times with the supplier.
- Studs
- Hot Formed Bolts and Screws
- Hot Formed Nuts
- Roll Threaded Studs, Bolts, and Screws
- Blind and Test Flanges
3 certificate records · marked Active by the source
The source sync time is not provided. Check current certificate status before purchasing.
Contact supplier
Phone & email for members
Active members can view contact details. Some profiles have none listed.
Membership is invitation-based and requires approval after registration. Public certificates need no sign in.
What should I include in an inquiry?
Include product specifications, quantity, required certifications, delivery location and target date. Ask for current certificates, a quotation and delivery terms.
Certificates & product scope
Check the relevant standards, scope and dates. Expand a record for details. Active is a source status, not live verification or supplier approval.
API-20E
20E-0167
Studs; Hot Formed Bolts and Screws; Hot Formed Nuts
- Effective
- 2026-09-16
- Expires
- 2029-09-16
View scope and certificate record details
Certification scope
Studs; Hot Formed Bolts and Screws; Hot Formed Nuts
- Original issue date
- 2026-09-16
- Source status changed
- 2026-09-16
API-20F
20F-0084
Hot Formed Bolts and Screws; Roll Threaded Studs, Bolts, and Screws; Hot Formed Nuts
- Effective
- 2026-09-16
- Expires
- 2029-09-16
View scope and certificate record details
Certification scope
Hot Formed Bolts and Screws; Roll Threaded Studs, Bolts, and Screws; Hot Formed Nuts
- Original issue date
- 2026-09-16
- Source status changed
- 2026-09-16
API-6A
6A-2619
Blind and Test Flanges
- Effective
- 2026-09-16
- Expires
- 2029-09-16
View scope and certificate record details
Certification scope
Blind and Test Flanges
- Original issue date
- 2026-09-16
- Source status changed
- 2026-09-16
Company information & address
A legal identity link is recorded. Procurement qualification has not been assessed.
View address & legal records
- Source company name
- Tianjin Sien Machinery Equipment Co., Ltd.
- Site address (source record)
- No. 381 Kangda Street, Dagang Development Zone Binhaixin District Binhai New Area, Tianjin, 300270 People's Republic of China
- Registered legal name
- 天津市思恩机械设备有限公司
- Unified Social Credit Code
- 911201166007324089
- Established
- 1997-07-09
- Registry status (source record)
- 存续（在营、开业、在册）
About these records
Certificates are sourced from the API Composite List; the sync time is not provided. OFMP is not a certifying body. Verify current certificates, company identity and delivery capability before purchasing.