Clutch Wheel Cylinder for TOYOTA DYNA 31470-37080,Clutch Wheel Cylinder for TOYOTA DYNA 31470-37080,William Optics Apochromatic refractor AP 81/559 ZenithStar 81 Red OTA,Predicting the directional spectral emissivity for rough surfaces polished by sandpaper - ScienceDirect,Predicting the directional spectral emissivity for rough surfaces polished by sandpaper - ScienceDirect