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.
Under the condition of the actual working condition, the workpiece under the extremely strong and high weekly, the action of alternating stress repeatedly, its quality directly affects the working efficiency of the cone crusher.
The grinding roller and shovel tool device are assembled on star rack.It is used to the powder processing of mineral products in the industries of metallurgy, construction materials, chemical and mining.
ABS EH40 shipbuilding Steel plate’s quality can be guaranteed by KUNFENG.KUNFENG is one of the famouse suppliers of ABS EH40 shipbuilding Steel plate with mang years history. We have set up long realtionhsip with many users of ABS EH40 shipbuilding Steel