[历史书籍] 史记会注考证校补（一）广文书局1972

81.32 MB2023-09-01

[农林业] 科学种田 第6辑 上海人民出版社 编 1972年版

8.77 MB2023-06-29

[医药书籍] 射流自动呼吸器 1972年版

1.09 MB2023-04-14

[青海地方标准] DB63/T 1972-2021 玉树莞根

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[山东省地方标准] DB37/T 1972-2011 鲁菜 扒原壳鲍鱼

132.68 KB2021-06-15

[团体标准] T/ZZB 1972-2020 氯化聚氯乙烯树脂

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[内蒙古地方标准] DB15/T 1972-2020 春玉米化控抗寒促熟技术规程

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[国外标准] DIN 46438-1972 高柔性圆铜索

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[国外标准] DIN 3760-1972 旋转轴唇形密封环

506.61 KB2020-12-07

[国外标准] DIN 3066-1972 圆股钢丝绳6-37(标准式)

72.66 KB2020-12-07

[国外标准] DIN 3064-1972 钢丝绳 6×36Warrington-Seale圆股钢丝绳

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[国外标准] DIN 3060-1972 圆股钢丝绳6x19(标准式)

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[国外标准] DIN 3055-1972 钢丝绳 6x7股圆绳

100 KB2020-12-07

[国外标准] DIN 3054-1972 钢丝绳 1×37螺旋钢丝绳

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[国外标准] DIN 3053-1972 钢丝绳 1×19螺旋钢丝绳

159.88 KB2020-12-07

[国外标准] DIN 3052-1972 钢丝绳 1×7螺旋搓制钢丝绳

131.36 KB2020-12-07

[国外标准] DIN 2441-1972 Zinc coatings on steel tubes quality standard for the hot galvanizing of steel

82.84 KB2020-12-07

[国外标准] DIN 2413-1972 钢管 抗内压钢管壁厚计算

5.25 MB2020-12-07

[国外标准] DIN 3055-1972 钢丝绳 6x7股圆绳 英文版

66.24 KB2020-12-07

[国外标准] DIN 2501-1-1972 英文版 Flanges connecting dimensions

1.8 MB2020-12-07

[国外标准] DIN 99-1972 锥形手柄

120.49 KB2020-12-05

[国外标准] DIN 974-1972 Sterling, K Free thyroxine and triiodothyro

206.31 KB2020-12-05

[国外标准] DIN 938-1972 双头螺距(牙长=1D)

271.59 KB2020-12-05

[国外标准] DIN 75-1-1972 Countersinks for Countersunk Head Screws

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[国外标准] DIN 582-1972 Rankin JHG, Gresham EL, Battaglia FC, et al Measurement оГ

81.32 KB2020-12-05