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  • GB/T 5796.4-2022梯形螺紋 第4部分：公差Trapezoidal screw threads—Part 4: Tolerances2022-10-26
  • GB/T 25161.1-2010包裝袋 尺寸允許偏差 第1部分:紙袋Packaging sacks—Dimensional tolerances—Part 1:Paper sacks...2022-06-14
  • GB/T 17773-1999形狀和位置公差 延伸公差帶及其表示法Tolerancing of orientation and location Projected toleran...2022-06-10
  • GB/T 20035.5-2005紡織機(jī)械與附件 交叉卷繞用圓錐形筒管 第5部分;半錐角5°57′圓錐形筒管的尺寸、公差和標(biāo)記Texti...2022-06-10
  • GB/T 3672.1-2002橡膠制品的公差 第1部分;尺寸公差Rubber--Tolerances of products--Part 1:Dimensional tolerance...2022-06-10
  • GB/T 18323-2001滑動(dòng)軸承 燒結(jié)軸套的尺寸和公差Plain bearings—Sintered bushes—Dimensions and tolerances...2022-06-09
  • GB/T 23537-2009超硬磨料制品.金剛石或立方氮化硼砂輪和磨頭.極限偏差和圓跳動(dòng)公差Superabrasives - Limit deviatio...2022-06-09
  • GB/T 1144-2001矩形花鍵尺寸、公差和檢驗(yàn)Straight-sided spline--Dimensions,tolerances and verification...2022-06-09
  • GB/T 5801-2006滾動(dòng)軸承48、49和69尺寸系列滾針軸承 外形尺寸和公差Rolling bearings?Needle roller bearings, dim...2022-06-08
  • HB 1-134-2002光桿公差帶h8短螺紋十字槽90°沉頭螺栓90° countersunk head bolts with cross recess shank tolera...2022-06-08
  • GB/T 39141.1-2020無機(jī)和藍(lán)寶石手表玻璃 第1部分:尺寸和公差Mineral and sapphire watch-glasses—Part 1:Dimensio...2022-06-06
  • Effects of NaCl and Iso-Osmotic Polyethylene Glycol Stress on Na+/H+Antiport Activity of Three Malus2020-12-22
  • Methanol Tolerant PWA-Pt/C Catalyst with Excellent Electrocatalytic Activity for Oxygen Reduction in2020-07-08
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