Geological Drill Introduction Hebei Geological Engineering Co. Ltd. Sun Life is specialized in producing all kinds of exploration equipment and auxiliary aids large-scale private en
Oil drill pipe Product Features 1. Superior-quality pipe advanced heat treatment process, high strength high toughness(especially under low temperature) 2. Smooth and long upset tra
Superior-quality pipe& advanced heat treatment process, high strength &high toughness(especially under low temperature) Smooth and long upset transition area & strong hard banding-
Product Features Superior-quality pipe advanced heat treatment process, high strength high toughness(especially under low temperature) Smooth and long upset transition area strong h