Heavy weight drill pipes we produce is made from AISI 4145H alloy steel. We manage our production and inspection process strictly according to API SPEC 7 requirements. Excellent quality of our products have been proved by many famous chinese oilfields. Our products can last more than 600 hours with no thread gluing and no fracture. They can last much longer than other competitors in China.

Shenlong provides different size heavy weight drill pipe, 3 1/2", 4 1/2", 5", 5 1/2".

Shenlong promises our product with superior quality, long life, short delivery time and competitive price.

Welcome your enquiry at any time !