市面上常说的45号钢材是什么？ - 知乎
45号钢材应用范围如下： 山东巨特管业45号无缝钢管 适用于制造较高强度的运动零件，如空压机、泵的活塞、蒸汽涡轮机的叶轮，重型及通用机械中的轧制轴、连杆、蜗杆、齿条、齿轮、销子等。 用于 …
9mm和.45有什么区别，为什么围绕这两种口径争论不休？
Jan 18, 2013 · 9mm Luger是德国在1902年发明的规格，所以9mm也被.45的忠粉叫做纳粹的子弹（虽然纳粹是在1933年take over德国的）。 讨论.45和9mm哪个好有时候就像在讨论美国车和德国车哪个 …
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45-GB-T699是什么材料？ - 知乎
45-GB-T699是指符合国家标准GB/T 699的45号钢，
For those who carry .45 ACP what load do you run? - Reddit
Jul 23, 2023 · I have seen comparisons of different hollow points performance, not .45 acp specific, that really revealed how much hollow point performance is velocity dependent. Even higher velocity than …
.45, huh? : r/CopyPastas - Reddit
Nov 19, 2017 · .45 huh? Incredible. The feeding ramp is polished to a mirror sheen... The slide's been reinforced, and the interlock with the frame is tightened for…
如何评价电视剧《太平年》45 集？ - 知乎
Feb 11, 2026 · 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专 …
HK45 with +P to 45 Super Ammo : r/HecklerKoch - Reddit
May 12, 2023 · Has anyone had experience shooting +P or 45 Super ammo in the full size HK45? The operators manual says it can handle +P and +P+. It does warn the this will have added wear to the …
Deciding between a Glock 45 and Glock 47 for first Glock
Aug 15, 2023 · Deciding between a Glock 45 and Glock 47 for first Glock Basically just the title. I’m going to be picking up my first Glock in the next few weeks. Based on the research I have done I’m …
2025年全国田径锦标赛男子400米半决赛，刘凯以45.06秒的成绩刷新全 …
Aug 3, 2025 · 原记录是2017年全运会郭钟泽跑出的45秒14，张起宁、梁宝棠、刘凯复赛的节奏就是奔着打破这个记录去的，他们三人隔空对决，分别跑出好成绩，刘凯更是打破全国记录！ 这是中国男 …