Specification资源列表
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[国外标准] BS 4872-2-1976 Specification for approval testing of welders when welding procedure approval is not
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[国外标准] BS 4848-4-1972 Specification for hot-rolled structural steel sections. Equal and unequal angles
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[国外标准] BS 4677-1984 Specification for arc welding of austenitic stainless steel pipework for carrying fluid
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[国外标准] BS 4660-1989 Specification for Unplasticized polyvinyl chloride (PVC-U) pipes and plastics fittings
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[国外标准] BS 4515-1-2009 Specification for Welding of Steel Pipelines on Land and Offshore - Part 1 Carbon and
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[国外标准] BS 4514-1983 Specification for Unplasticized PVC Soil and Ventilating Pipes, Fittings and Accessorie
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[国外标准] BS 4486-1980 Specification for hot rolled and hot rolled and processed high tensile alloy steel bars