1981资源列表
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[国外标准] BS 6206-1981 Specification of Impact performance requirements for flat safety glass and safety plast
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[国外标准] BS 6104-3-1981 Mechanical properties of fasteners. Part 3 Specification for set screws and similar t
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[国外标准] BS 6088-1981 Specification for solid glass beads for use with road marking compounds and for other i
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[国外标准] BS 6073-1-1981 Precast concrete masonry units. Specification for precast concrete masonry units
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[国外标准] BS 6047-1-1981 Flame supervision devices for domestic, commercial and catering gas appliances
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[国外标准] BS 4942-6-1981 Short link chain for lifting purposes. Specification for grade T (8) calibrated chain
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[国外标准] BS 4942-5-1981 Short link chain for lifting purposes. Specification for grade S (6) non-calibrated c
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[国外标准] BS 4942-4-1981 Short link chain for lifting purposes. Specification for grade S (6) non-calibrated c
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[国外标准] BS 4942-3-1981 Short link chain for lifting purposes. Specification for grade M (4) calibrated chain
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[国外标准] BS 4942-2-1981 Short link chain for lifting purposes. Specification for grade M (4) non-calibrated c
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[国外标准] BS 4942-1-1981 short link chain for lifting purposes Part 1 Specification for general conditions of
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[国外标准] BS 4870-1-1981 Approval testing of welders working to approved welding procedures- Fusion welding of