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.
A204 GR.B is under ASTM standard and A204 GR.B steel is a Cr-Mo alloy steel which is particularly designed for boilers and pressure vessels. KUNFENG can offer A204 GR.B steel in most competitive price with assured quality.
RMRS Grade B shipbuilding steel plate are almost exclusively used in the Shipbuilding Industry for the construction of structural parts of ships, barges and marine equipment.RMRS Grade B shipbuilding steel plates have yield strength of 34,100 psi (235 MPa
CCS DH32 shipbuilding steel plate is KUNFENG’main steel plate. we have a long story on supplying CCS AH40 shipbuilding steel plate. CCS DH32 shipbuilding steel plate’ quality can be guaranteed by KUNFENG. KUNFENG have five departemnet which have different