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Dual-wall Drill Rods In China
Dongying Lake Petroleum Technology Co., Ltd supplies Dual‑wall drill rods designed for reverse‑circulation (R.C.) drilling operations in China. The rods feature an internal annular space that allows drilling fluid to flow between the dual walls, facilitating efficient sample retrieval and stabilising the borehole. The supplier highlights compatibility with their R.C. air‑water swivel and GQ air‑driven hollow DTH hammer, indicating an integrated drilling system.
Typical dual‑wall drill rods are manufactured from API 5CT J55 grade steel, providing tensile strengths of at least 620 MPa and good resistance to fatigue. Standard dimensions include outer diameters from 76 mm to 152 mm and wall thicknesses between 6 mm and 12 mm, with a common length of 6 m per rod. The rods are usually supplied with threaded API connections and are designed to withstand the cyclic stresses of R.C. drilling while maintaining annular flow efficiency.
The primary customers are oil‑field service companies and drilling contractors that require reliable hole‑stabilisation and continuous sample transport. Dongying Lake Petroleum Technology Co., Ltd offers the rods as part of a complete drilling package, but the listing does not disclose specific trade terms; buyers should request FOB or CIF options, confirm the minimum order quantity, and verify lead‑time expectations before proceeding.
| Design type | Dual‑wall |
| Material | API 5CT J55 grade steel, typical |
| Outer diameter | 76‑152 mm, typical |
| Wall thickness | 6‑12 mm, typical |
| Tensile strength | ≥ 620 MPa, typical |
| Length | 6 m standard, typical |
| Weight per metre | ≈ 30 kg/m, typical |
| Connection type | API threaded, typical |
| Operating temperature | ‑20 °C to 150 °C, typical |
| Application | Reverse‑circulation drilling, typical |
Dongying Lake Petroleum Technology Co., Ltd is situated on Huanghe Road in Dongying, Shandong province, China. The company is classified as an imported‑tier supplier with a harbor trust tier, indicating verification for international trade. Its public response metrics show a 0.00 % response rate and no average response time recorded, so communication may require persistent follow‑up.
The supplier’s catalogue emphasises equipment for R.C. drilling, including the dual‑wall rods, compatible air‑water swivels and hollow DTH hammers. No additional details on production capacity, workforce size or client references are provided, so buyers should request a detailed capability statement and recent project examples to assess suitability.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Sourcing Dual-wall Drill Rods In China from Dongying Lake Petroleum Technology Co., Ltd - China Import Guide
Confirm that the supplied material grade matches API 5CT J55 and that a recent mill‑test certificate is available. Request a detailed dimensional drawing that shows outer diameter, wall thickness and thread specifications to avoid mismatches during assembly.
Clarify the shipping incoterm - whether the supplier will ship FOB from the Dongying port or arrange CIF to your destination. Ask for estimated lead‑time, typical container loading capacity and any required documentation for customs clearance in your country.
Upon receipt, perform a visual inspection for surface defects, then conduct a hydraulic pressure test to verify annular flow capacity and structural integrity. Retain the material test report, dimensional inspection record and any NDT certificates as part of your quality‑control dossier.
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30 suppliersBuy Dual-Wall Drill Rods In C in Bulk — Supplier in China
When sourcing Dual-Wall Drill Rods In China for your business, securing the right balance of quality and cost is essential. Dongying Lake Petroleum Technology Co., Ltd, a supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $50700/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Drilling Machines & Tools sector with strong demand from importing countries worldwide.
Dual-Wall Drill Rods In C Specifications, Trade Terms & Pricing
Importing Dual-Wall Drill Rods In C requires careful attention to shipping logistics, customs compliance, and secure payment terms. Dongying Lake Petroleum Technology Co., Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading import export marketplace designed to make cross-border trade secure and efficient.
About Dongying Lake Petroleum Technology Co., Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Dual-Wall Drill Rods In C for business registration and quality documents before ordering. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of manufacturers and exporters across 200+ countries. Explore similar products in the Drilling Machines & Tools category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import Dual-Wall Drill Rods In C — Shipping, Logistics & Customs
Importing Dual-Wall Drill Rods In C requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Dual-Wall Drill Rods In C
What is the wholesale price of Dual-Wall Drill Rods In China?
The current listed wholesale price for Dual-Wall Drill Rods In China from Dongying Lake Petroleum Technology Co., Ltd is $50700/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Dongying Lake Petroleum Technology Co., Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for Dual-Wall Drill Rods In C?
The supplier, Dongying Lake Petroleum Technology Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Dual-Wall Drill Rods In C. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Dual-Wall Drill Rods In China?
The HS Code classification for Dual-Wall Drill Rods In China depends on the specific grade and form. Contact Dongying Lake Petroleum Technology Co., Ltd through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import Dual-Wall Drill Rods In C from China?
To import Dual-Wall Drill Rods In C from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Dongying Lake Petroleum Technology Co., Ltd. Ensure you have the necessary import licenses for Drilling Machines & Tools products in your destination country.
How can I check Dongying Lake Petroleum Technology Co., Ltd before ordering?
Open the Dongying Lake Petroleum Technology Co., Ltd company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of Dual-Wall Drill Rods In China?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Dongying Lake Petroleum Technology Co., Ltd through EximNext.
What packaging options are available for bulk orders of Dual-Wall Drill Rods In C?
Dongying Lake Petroleum Technology Co., Ltd offers Dual-Wall Drill Rods In C with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Dual-Wall Drill Rods In C the most?
Dual-Wall Drill Rods In C is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Dongying Lake Petroleum Technology Co., Ltd through our platform.
What certifications does this Dual-Wall Drill Rods In C supplier hold?
Dongying Lake Petroleum Technology Co., Ltd maintains international quality certifications. These ensure that the Dual-Wall Drill Rods In C meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Dual-Wall Drill Rods In China on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Dongying Lake Petroleum Technology Co., Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Dongying Lake Petroleum Technology Co., Ltd.
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