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.
GBT9711 L320/X46 PSL1 LSAW Pipeline has good mechanical properties and chemical properties,GBT9711 L320/X46 PSL1 LSAW Pipeline is mainly used in natural gas pipe, tubing, water pipe, steel structure, chemical industry, air conditioning, heat pipe, urban construction pipe, its surface can be painted black painting, antiseptic oil, 3PE, FBE, EPOXY coating.
Cone crusher crushing wall suitable for crushing hard and medium hard ore and rock, such as iron ore, limestone, copper ore, quartz, granite, sandstone, etc.