Drill String Cross-over Sub uses AISI4145H chromium-molybdenum steel, execute API specification.We can produce the same-dia type, reducers type and L-type three types, the screw can be cold thread rolling, copper or phosphate treatment.
ASTM A387 Gr 5 Cl1 Pressure vessel and Boiler steel plate is one of our most popular products. ASTM A387 Gr 5 Cl1 Pressure vessel and Boiler steel plate is a low alloy pressure vessel quality steel for high temperatures.
CNC grinding involves the removal of small amounts of metal using a high-speed abrasive rotating wheel as the cutting tool. The grinding wheel remains stationary, while the workpiece is fastened to th