... used and building access, 2-12 Core 0.9mm fiber inside the cable; central tube for protection; FRP member. Applications1, Mainly used in building ... G657 fiber is used.Options1, Fiber Type: G652, G655 or G657 single-mode fiber, A1a or A1b multi mode cable, or other types of fiber;2 ... ;6, Other Requirements: Other contracted special requests. 3G used Loose Tube fiber optic Cable II (SJB006)