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API Perforated Sub, Premium Steel Grade Downhole Tubing Drilling Accessory
US$150.00
1 Piece
Product profile
After-sales Service
3 MonthsWarranty
12 MonthsCertification
APIModel NO.
3-1/2Surface Treatment
Spray-PaintCentralizer Type
NoStructure
NipleMaterial
Cast SteelType
NoTransport Package
Wooden CaseSpecification
1800*500*500Trademark
DFLOrigin
ChinaKey features
API Certified Quality: Manufactured to strict API standards ensuring reliability in oilfield operations.
Robust Cast Steel Material: Constructed from high-grade cast steel for superior durability and pressure resistance.
Standard 12-Month Warranty: Covers mechanical defects for 12 months or 2,000 operating hours, whichever comes first.
Extended Warranty Option: Optional coverage available up to 36 months for enhanced protection.
Comprehensive Training Support: Provides on-site or remote operation and maintenance training for users.
Optimized Fluid Flow Design: Precisely machined holes regulate flow, balance pressure, and improve circulation efficiency.
Versatile Downhole Application: Ideal for oil and gas drilling, well completion, and sand control in harsh environments.
Fast Lead Time Delivery: Average production time within 15 workdays for both peak and off-peak seasons.
Company profile
Business Type: Manufacturer/FactoryExport Year: 2019-06-07Nearest Port: TIANJIN PORT, QINGDAO PORT, SHANGHAI PORTAverage Response Time: ≤15hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, DDP
AI-Powered supplier vetting
SummaryTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd. is a China-based manufacturer founded in 1999, focused on oil pipes, pipe fittings, drilling and production tools, and petroleum automation equipment. The supplier reports ISO 9001 and ISO 14001 certification, 10 production lines, 11–20 years of R&D engineer experience, and 11–20 quality-control staff. It states that its capabilities cover design, development, manufacturing, testing, experimentation, and full-cycle service, supported by more than 30 independent intellectual property rights and an intelligent workshop. The company exports to broad global markets and reports export activity since 2019, but the provided information does not identify specific customer cases or independently verify the stated capabilities.
Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company based in Tianjin, China. Its stated business focuses on petroleum equipment, oil pipes, pipe fittings, drilling and production tools, and automation equipment, matching the listed industrial product categories.
CertificationsThe supplier reports holding ISO 14001 and ISO 9001 management-system certifications. These are explicit certification records in the provided data, although certificate scope and validity dates are not given.
R&D capabilityThe supplier reports more than 30 independent intellectual property rights, an intelligent workshop, numerical-control automation equipment capabilities, an e-commerce platform, and recognition as a national science and technology-based small and medium-sized enterprise. These statements provide explicit evidence of innovation-related infrastructure and activity.
Production capacityThe supplier describes an integrated chain covering design, development, manufacturing, testing, and experimentation; operates 10 production lines; and has an intelligent workshop. It also reports oil equipment and pipe-related manufacturing experience, with stated order fulfillment within 15 workdays in both off-peak and peak seasons, supporting a positive production-capability assessment.
Customization capabilityThe stated full-cycle integration of design, development, manufacturing, testing, and experimentation, together with numerical-control automation equipment and an intelligent manufacturing model, indicates the ability to develop and manufacture tailored petroleum equipment. However, no specific customized project examples, engineering-change process, or minimum-order requirements are provided.
Product Q&A
Q:What is the standard warranty period?
A:
The standard warranty is 12 months or 2,000 operating hours, whichever comes first.
Q:Is extended warranty available?
A:
Yes, optional extended warranty coverage is available up to 36 months.
Q:What material is the perforated sub made of?
A:
It is made of high-grade cast steel with a spray-paint surface treatment.
Q:Does the product meet API standards?
A:
Yes, the product is certified to meet API standards for oilfield applications.
Q:What training services are provided?
A:
We offer both on-site and remote operation and maintenance training.
Send Inquiry
*To:
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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