Min. Order Reference FOB Price
1 Piece US$78.00-500.00 / Piece
Product Description
Product Description Drill string cross-over sub Drill string corss-over sub is made of AISI 4145H modified chromium molybdemum alloy steel according to API Specifications7. There are three kinds of subs: Straight ODSubs, Reduced Secion Subs and Left Hand Subs. All threads are phosphated, ...