Import Drilling Pipes — Buy in Bulk from Supplier in China

Goldenman Petroleum Equipment Co., Ltd. supplies drilling pipes with outer diameters from 2 7/8 inches to 5 1/2 inches, manufactured in steel grades E75, X95, G105, and S135. These grades correspond to API 5DP classifications for varying tensile and yield strength requirements, with end finishes including EU-external and ups internal configurations. The product is intended for use in high-stress drilling environments where material performance directly impacts operational safety.

The steel grades listed are industry-standard for drill pipe applications: E75 for general use, X95 for deeper wells with higher pressures, G105 for high-torque operations, and S135 for extreme conditions requiring maximum strength. Typical wall thicknesses range from 0.250 to 0.500 inches, with corresponding weight per foot from 8.5 to 22.5 lbs/ft. No information is provided on heat treatment processes, metallurgical controls, or non-destructive testing procedures.

These pipes are sourced by oilfield service companies, drilling contractors, and geothermal energy developers operating in regions with complex geology. Packaging is secure for maritime transport, and trade terms include FOB and CIF. Buyers must confirm minimum order quantities, lead times, and documentation requirements such as mill test reports and inspection certificates directly with the supplier, as these are not specified in the listing.

Goldenman Petroleum Equipment Co., Ltd. is located at 7/F, Wanda International Mansion, Fuqian Street, Dongying, Shandong, China. The supplier is classified as imported and holds harbor trust tier status, indicating verified business registration and operational address. No company history, workforce size, production capacity, certifications, or client references are disclosed in the listing.

The supplier appears to specialize in manufacturing and exporting drilling pipes with standardized grades and end finishes. There is no mention of internal quality control labs, third-party audits, or traceability systems. Buyers must assume all technical claims are unverified unless supported by documented test reports or inspection certificates provided directly by the supplier.