... good 3,Materials uniform hardness 4,Inside surface smooth Ultrasonic mould industry application: The car industry,Electronic industry, ... industry,Clothing industry,Medical industry, etc Ultrasonic mould main function:1, ultrasonic mould according to the product shape with ... in two aspects: 1, materials, 2, processMaterials: Ultrasonic welding metal materials requirements and the gender is good(Sound ...