Web556,274. Grinding crankshafts. PRINCE, V. J. March 24, 1942, No. 3880..[Class 60] A machine for grinding both the main journals and crank pins of a worn crankshaft without re-setting the work comprises a tailstock and an electrically driven headstock mounted on a carriage 6 slidable by rack and pinion gearing on a bench plate 2 in relation to a grinding … WebDec 31, 2012 · 标准号:GB/T 3880.1-2012. 中文标准名称: 一般工业用铝及铝合金板、带材 第1部分:一般要求. 英文标准名称:Wrought aluminium and aluminium alloy …
GB/T 3880.2-2006 English Version, GB/T 3880.2-2006 Wrought …
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国家标准 GB/T 3880.2-2012 - samr
WebDec 31, 2012 · 标准号:GB/T 3880.2-2012. 中文标准名称: 一般工业用铝及铝合金板、带材 第2部分:力学性能. 英文标准名称:Wrought aluminium and aluminium alloy … Web铝板的化学成分、规格、力学性能、尺寸及允许偏差应符合gb3190,gb3880,gb3194的规定。 (2)滑动槽铝: 采用LC4铝合金挤压型材,并符合YB1703-77《铝及铝合金挤压型材》的规定。 WebBecause of its excellent quality, it is widely praised in the industry. Color coated aluminium roofing sheet alloy:. Alloy:3004h24, a3004h26, a3003h24; Thickness: 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.2 mm; Width: can be cut to any width from 55mm to 1600mm according to customer requirements; Color: common silver gray, bright silver ... difference between choice ppo and basic ppo