Porous ceramic vacuum chuck

From 1x1 inch to 40x40 inch size availlable

From 1 um to 10,40,60,80,120,180 um pore size

From brown,grey,blue to black color

From alumina ,alumum,zirconia,stainless steel to titanium 

From micron flatness to submicron

and

From the Silicon Valley to the world