[国外标准] BS 5911-4-2002 Concrete pipes and ancillary concrete products. Specification for unreinforced and re

573.57 KB2020-11-27

[国外标准] BS 5911-3-1982 Precast concrete pipes and fittings for drainage and sewerage part 3 Specification fo

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[国外标准] BS 5911-200-1994 Precast concrete pipes, fittings and ancillary products. Specification for unreinfo

1.73 MB2020-11-28

[国外标准] BS 5911-2-1982 Precast concrete pipes and fittings for drainage and sewerage part 2 Specification fo

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[国外标准] BS 5911-100-1988 Precast concrete pipes, fittings and ancillary products. Specification for unreinfo

1.58 MB2020-11-27

[国外标准] BS 5911-1-2002 Concrete pipes and ancillary concrete products. Specification for unreinforced and re

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[石油行业标准] SY/T 5911-2012 射孔优化设计规范

299.88 KB2019-12-01

[石油行业标准] SY/T 5911-2012 射孔优化设计规范

299.88 KB2019-12-01

[石油行业标准] SY/T 5911-1994 射孔优化设计规范

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[国家标准] GB/T 5911-1986 转向盘 尺寸

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