... operation Low noise Small vibration Rolling door motor"Hualin" brand electric security rolling door motors are using general AC motor with mature process,stable ... name Production Line Capacity Actual Units Produced(Previous Year) Electric Rolling Door Motor USD 13,000,000 / Year USD 6,500,000 ... CE MIRTEC SA MC/TH-C-214/08 DC Rolling Door Motor and Electric Control Box & HL-6555M220DC-A,HL-DC-300KG, ...