Advantage: 1)movable,easy installation, 2)short delivery date, 3)low cost,apply to small area, 4)cleanline 1.Structure: ... industry’s used as frame, surrounded by anti-static curtain or ESD organic glass sheet, covered by air-tight joint blind plate on ... be installed), suitable for building small and high cleanliness area;(3) Module structure to improve high cleanliness class easily, great expansibility ...