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签到天数: 1 天 连续签到: 1 天 [LV.1]初来乍到 - 金币
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MIL-S-17996, MILITARY SPECIFICATION: STEEL SHEET AND OTHER WROUGHT FORMS, CORROSION RESISTING, AUSTENITIC (LOW MAGNETIC PERMEABILITY), CHROMIUM-MANGANESE-NICKEL (11 DEC 1986) [S/S BY QQ-S-766]., Military Specification MIL-S-17996 (SHIPS), dated 4 .June 1954, is herebycanceled. Future acquisition of alloys for plate, 6heet and strip should bemade under QQ-S-766, Steel Plates, Sheets, and Strip - Corrosion Resisting.Class 1 for bar and forging should be made under alloy 201 of ASTM A 276,Standard Specification for Stainless and Heat-Resisting Steel Bars and Shapes.Class 2 is no longer available, hut alloy s28200 of A 276 can be usedin its place.
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发表于 2012-3-31 17:52:35
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