Metal Box(BS 4662) : 1) can make 0.6,0.8.10mm thickness; 2) with/without brass earthing ; Metal box(BS 4662) Features:1) M839 35mm combination metal box(3x6+3x3)2) M840 35mm multi metal box (3x6+3x3+3x3)Inner packing:10pcs/color boxOuter pacing: 40pcs/ctn