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SL 25-1991 Specification for the Design of Mortar-Rock Dams SL 25-91 Preparation Instructions SL25-1991 Standard Download Decompre
SL 300-2004 Water Conservancy Scenic Area Evaluation Standard SL 300-2004 SL300-2004 Standard download decompression password: www
This specification is applicable to the construction and management of new and supporting reinforced backbone dams in areas with s
This code is applicable to all types of geological surveying and mapping work for water conservancy and hydropower projects. SL 29
This standard is applicable to the preparation of construction organization design documents in the preliminary design stage for l
SL 227-1998 Rubber Dam Technical Specification SL 227-98 SL227-1998 Standard download decompression password: www.bzxz.net
SL 260-1998 Dike Engineering Construction Specification SL 260-98 SL260-1998 Standard download decompression password: www.bzxz.ne
This standard applies to the design, construction, testing and management of channel anti-seepage projects for farmland irrigation