Enviromental Electronic Screw , top material , high precise process and good packing , Material:steel Brand name:JC Enviromental Electronic Screw , top material , high precise process and good packing , carbon steel ,(such as C1010 C1018 C1022 C1035 C1045 ) , stainless steel , brass , bronze and so on . Printer , Faxer ,waher etc. usually be in need of Electroninc Screw .Brand name:JC