ASTM A517/A517M-2017 壓力容器用經(jīng)回火與淬火的高強度合金鋼中厚板規格 Standard Specification for Pressure Vess...2023-08-29
GB/T 32076.10-2018 預載荷高強度栓接結構連接副 第10部分:安裝技術(shù)條件 High-strength structural bolting assembli...2023-08-13
GB/T 36026-2018 油氣工程用高強度耐蝕合金棒 High-strength corrosion-resistant alloy bars for oil and gas engi...2023-08-09
GB/T 33943-2017 鋼結構用高強度錨栓連接副 High-strength structural anchor bolting assemblies for steel struct...2023-08-06
GB/T 32076.9-2017 預載荷高強度栓接結構連接副 第9部分:扭剪型大六角頭螺栓和螺母連接副 High-strength structural...2023-08-01
BS EN ISO 18275-2018 Welding consumables. Covered electrodes for manual metal arc welding of high-strength...2023-07-31
ASTM A847/A847M-2020 Standard Specification for Cold-Formed Welded and Seamless High-Strength, Low-Alloy St...2023-07-22
ASTM A1008/A1008M-2018 Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Stren...2023-07-18
ASTM A568/A568M-2019 高強度低合金熱軋和冷軋碳素結構鋼薄板一般要求規格 Standard Specification for Steel, Shee...2023-07-02
EN 14399-9-2018 High-strength structural bolting assemblies for preloading. Part 9:System HR or HV. Direct ...2023-07-01
ASTM A1008/A1008M-2020 Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Stren...2023-06-16
BS EN 14399-5-2015 預加負荷用高強度結構螺栓組件 平墊圈 High-strength structural bolting assemblies for prelo...2023-05-26
DIN EN 14399-9-2019 High-strength structural bolting assemblies for preloading - Part 9: System HR or HV - ...2023-05-16
BS EN 14399-4-2015 預加負荷用高強度結構螺栓組件 系統HV 六角螺栓和螺母組件 High-strength structural bolting a...2023-05-02
ASTM E272-2019 高強度銅基和鎳銅合金鑄件參考射線(xiàn)照片 Standard Reference Radiographs for High-Strength Copper-...2023-05-01
欧美AAAAAA级午夜福利_国产福利写真片视频在线_91香蕉国产观看免费人人_莉莉精品国产免费手机影院