Steel plate 1. G-70 (roof tile type steel plate) Specification : effective width :700mm, thickness 0.4mm 2. S-47 (slate type steel plate) Specification : effective width :750mm, thickness 0.4mm 3. V-115 Specification : effective width :1000mm, thickness 0.4mm Sr-102 Specification : effective width :1000mm, thickness 0.4mm
