... good service. 2) CE,ISO 3) OEM,BaiYun medical blue x ray film is used for the examination ... used with the blue emitting intensifying screen.It features high sensitive speed, moderate contrast, abundant gradation, good definition ... 30%RH-60%RH). Keep it away from dampness, high temperature, any bad effective gases, x-ray, gamma ... any harmful effect caused by pressure. medical blue x ray film (25cm*30cm)