... roller door professional Manufacturer -- Shinilion Shnilion Automatic Door Specification:1) Slat option: 55,60,77,78,100,120mm2) Rail option:64, 80 ... ,100,120mm guide rail 3) Motor: tubular motor ... Powder Coating7) Mterial: 6063T5 aluminium8) MAX SIZE 60m2 2. Shnilion Automatic Garage Door Quality Control(1) Material Select: Using 97% purity ...