Descriptions: Widely applied in the flange and the connection of the chemical plant, electricity generating station, nuclear power station, and electronic, digital consumer products, hardware, precision instruments, electrical appliances, bearings, air pumps, water pumps, water valves, air cylinder, sealing the high pressure braking systems.ect. Specifications: Product Name : Copper Washer Material : Copper Color : Copper Tone Weight : 48g Operature Pressure:16MPa Operature Temperature: 350C Melting Point: 1083C Package Include: 30 Pcs x Copper Washer