Mooring chain steel with high environmental crack resistance and mooring chain
Improved austenite steel anchor chain and manufacturing method
Welding valve zinc alloy piston buffered sea wind power generation instrument
Wind power generating facility adopting union valve copper alloy flange piston shock absorption
Flanged valve chromium alloy union spring sea wind power generation platform
Tungsten-manganese alloy threaded spring offshore oil well power-assisted system
Auxiliary zinc alloy welding piston buffer offshore oil well machinery
Offshore facility with metal processing apparatus and power generation system
Boat accessory with corrosion indication layer and manufacturing method thereof
Mooring chain steel and production process thereof, and mooring chain and production process thereof
Offshore well power assisting device with chromium and manganese alloy welding springs
MOORING CHAIN STEEL AND PRODUCTION METHOD THEREFOR, AND MOORING CHAIN AND PRODUCTION METHOD THEREFOR
Composite board ice belt structure for ship sailing in ice area
Copper alloy offshore oil well power-assisted device achieving threaded piston shock absorption