GB/T 12000-2003 Determination of the effects of exposure to damp heat,water spray and salt mist for plastics
GB/T 12000-2003 塑料暴露于湿热、水喷雾和盐雾中影响的测定
GB/T 12000-2003 Determination of the effects of exposure to damp heat,water spray and salt mist for plastics
GB/T 12000-2003 塑料暴露于湿热、水喷雾和盐雾中影响的测定