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 …
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 …
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 …
.45 Super conversion? : r/1911 - Reddit
Aug 22, 2022 · To be totally honest, most well built, steel frame, modern 1911s can handle 45 super out of the box, the most you might have to do is change out your recoil spring. If you really want to be …
45/55/55/45 : r/fortyfivefiftyfive - Reddit
2.3K votes, 26 comments. 626K subscribers in the fortyfivefiftyfive community. The connoisseur's boob.
45#钢做什么表面处理不会生锈？ - 知乎
45号钢表面处理主要是防锈，可分为两种，物理性防锈和化学性防锈； 物理防锈又分为：喷油或涂油、喷防锈漆、电泳漆、 PVD 等等； 化学防锈又分为： 化学钝化防锈 、 磷化防锈 、电镀防锈等等； …
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 …
45 acp Vector recommendations for what supressor to get for her
Sep 26, 2022 · Obsidian 45 hands down! Belt fed rated, and is modular for long and short sizes. vector 45 w/ obsidian
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 …