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API 11b Upset on One End Polished Rod
US$42.11
1-99 Pieces
US$37.13
100+ Pieces
Product profile
Customization
AvailableStandard
API 11bMaterial
Carbon Steel, Alloy Steel, Stainless SteelModel NO.
Polished RodGrade
H, DSize
5/8'', 3/4'', 7/8'', 1'', 1 1/8''.Transport Package
Iron Frame PackingSpecification
API, ISOTrademark
ZhongshiOrigin
Henan, ChinaHS Code
84139100Production Capacity
5000piece/MonthKey features
API 11B Certified: Manufactured in strict accordance with API Spec 11B standards for oil extraction.
Multiple Material Options: Available in Carbon Steel, Alloy Steel, and Stainless Steel.
High Strength & Toughness: Engineered for long lifetime with smooth surface and superior mechanical properties.
Three Type Variants: Offering Normal, Upset on One End, and Metal Spray configurations.
ISO & API Certifications: Holds ISO 9001, ISO 14001, and various API certifications.
Precision Manufacturing: Produced via cold-drawing, rolled threading, and surface grinding processes.
OEM/ODM Services: Customization services available for specific client requirements.
Global Export Experience: Over 10 years of export experience serving markets in America, Asia, and Middle East.
Company profile

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2016-09-22 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤15h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryPuyang Zhongshi Group Co., Ltd. is identified as a Chinese manufacturer established in 1997, focused on casing cementing equipment, float equipment, centralizers, and cementing plugs. The supplier reports a 52,000 m² plant, 10 production lines, annual casing-centralizer output of 200,000 pieces, and exports to multiple global regions. ISO 9001:2015, ISO 14001:2015, and ISO 45001:2016 are stated, while other company information references API certifications. Trade records show shipments associated with buyers in India, Brazil, and Peru, but the records are recent and limited. Evidence supports established manufacturing and export capability; after-sales service, financial credibility, and customization capability remain insufficiently documented.
Supplier typeThe supplier is explicitly classified as a manufacturer and describes itself as producing casing cementing equipment and related oilfield products. It is based in Puyang, Henan, China, and reports that it was established in 1997.
CertificationsThe supplier reports ISO 9001:2015, ISO 14001:2015, and ISO 45001:2016 management-system certificates. It also states that it holds API 5CT, API 6A, API 11AX, and API 11E certificates, although the provided information does not include certificate validity or scope details.
Production capacityProduction capability is supported by a reported 52,000 m² plant, 10 production lines, 9 factories, more than 500 employees, and annual casing-centralizer output of 200,000 pieces. The supplier also states that it can serve broad international markets, with typical lead times of 2–3 months in both peak and off-peak periods.
Client casesThe supplier is associated with buyers or shipments involving VNK Solutions, Smart Welding de Macae Servicos Ltda, and a Peru-related transaction, while also stating exports to more than 30 countries. The evidence indicates international customer exposure, but provides limited detail on completed projects, customer satisfaction, order scale, or repeat business.
Product Q&A
Q:What materials are available for this polished rod?
A:
The polished rods are available in Carbon Steel, Alloy Steel, and Stainless Steel.
Q:Does this product meet API standards?
A:
Yes, the product is designed and manufactured in accordance with API Spec 11B and holds API and ISO certifications.
Q:What are the available sizes for the polished rod?
A:
Available sizes include 5/8'', 3/4'', 7/8'', 1'', and 1 1/8''.
Q:What types of polished rods are offered?
A:
We offer Normal type, Upset on one end, and Metal Spray types.
Q:What are the mechanical properties of the rod?
A:
The rods feature high strength, good toughness, and a smooth surface, with specific yield and tensile strengths depending on the grade (H or D).
Send Inquiry
*To:
Puyang Zhongshi Group Co., Ltd.
Puyang Zhongshi Group Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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