high strength threaded rod

ASTM A519 ท่อเจาะไร้รอยเหล็กคาร์บอนในกล่องไม้

Product Description: Seamless Drill Pipe is a kind of 1541 drill tubes that are made of carbon steel, alloy steel and stainless steel. It features an outer tube and an inner tube, which are both essential components of wire line drill pipes. It is available in a wide range of sizes from 1/2” to 24” ...