Тэги:
#Friction_welding #Friction_welding_machine #Friction_welding_process #Friction_welding_technique #friction #friction_and_its_types #friction_physics #friction_stir_welding #friction_welding #frictional_force #kinetic_friction #linear_friction_welding #rotary_friction_welding #static_friction #stick_welding #welding #what_is_frictionКомментарии: