BS 5911-200-1994 Precast concrete pipes, fittings and ancillary products. Specification for unreinfo

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标准类别：国外标准

关键词： BS 5911 200 1994 Precast

标准简介

BS 5911-200-1994 Precast concrete pipes, fittings and ancillary products. Specification for unreinforced and reinforced manholes and soakaways of circular