Metal gear rackfor sliding gate 1low carbon steelwithelectroplating Steel gear rack have below sizes Length:(1005 or 1998) in model 4 8*30*1005 9*30*1005 10*30*1005 11*30*1005 12*30*1005 20*20*1005 22*22*1005 25*25*1005 30*30*1005 8*30*1998 9*30*1998 10*30*1998 11*30*1998 12*30*1998 20*20*1998 22*22*1998 25*25*1998 30*30*1998 our gear rack can produce in model 3. 4. 6