... ,Autogate gear rack ,Nylon gear rack,Nylon Rack for sliding gate operator,plastic gear rack,cnc gear rack ... 4 eyes and 6 eyes availableOur gear rack for sliding gate is most reliable and exported to ... 20X20, M4 22X22 etc. All is steel material galvanized.For one meter length M4 8x30, M4 9X30, M4 10X30 ... gear rack with 8um thichness coating.can produce in model M3.M4.M5.M6..Material: A3 ,45# ,stainless ...