... galvanized hole shape:diamond ,etc usage :used in filter element,machine ,etc expanded plate sheet finishing: galvanized hole ... shape:diamond ,etc usage :used in filter element,machine ,etcExpanded metal: the meterials : stainless steel plate ... ,galvanizing ,anodizing,painting,lacquering,plastic coatingusage : used in filter elements, medicine, paper-making, filtering, breeding, wire ...