hard coating on softsubstrate
electroplated hard chromium coating
hard and wear resistant coating
Hard Roof and Hard Coal
Hard Roof and Hard Floor
hard-soft-hard sandwich media
microcrystalline coating and microcrystalline coating with dispersed oxide particles
20 m VERY THICK AND MEDIUM HARD SEAM
3 channels hard cholecystoscope
A Good Man Is Hard to Find
ABCD optical system with internal hard-edge aperture