I just want to know I currently need 534 total welding rods for visible techs, and only have 316 crafted. Same info as provided in an individual tech, but spanning all of the ones I'm working on since 4 different techs may be waiting on welding rods.
There is the Statistics advancement that you can unlock with AP. On Level 3 you get the Recipe Statistic with some useful information. With Level 4 the whole tech tree gets revealed. For what you ask for you might want to have Level 3 but not Level 4, because together with Level 4 the Recipe Statistics sum up all the techs, even those that you can't unlock yet. Given you have 300 APs to spend, you might want to test if the Recipe Statistic perhaps already is what you were looking for.