We are the first level agent of Baosteel for heavy steel plate and oil equipments, the specification of products we supplied, as follows:

Drill pipe

1) Standard: API SPEC 5D,  API SPEC 7

2) Uses: For well Drilling

3) Tolerances on Dimensions

-Pipe Body: OD≤101.6mm ±0.79mm

          OD≥114.3mm  +0.1%/-0.5%

          WT -12.5%

-Weight:  Single Lengths +6.5%/-3.5%

4) Grade: E75, X95, G105, S135

5) Size OD: 2-3/8,2-7/8,3-1/2,4,4-1/2,5,5-1/2

        WT: 7.11mm-10.54mm

If you have request ,pls do not hesitate contact me