They used no radios for fire control and in terms of tubes about 76k all war vs 220k by the British. Its actually a problem both of intent but also capability. Could not make dry cell batteries in numbers.
Average life of a truck ( which is admittedly and HGV type) in the german army is 50 hours, after that the ill trained driver has buggered up the gearbox.
For all the alleged superiority in everything the germans were outproduced across the board in just about every category of relevant weaponry. and seriously outproduced in the decisive ones, with an enemy that also maintained a massive superiority in anything that floated.
So electrical industry, copper wiring, where do you get the copper? 21k tons annually produced in germany in 1907, and they were short of metal for artillery driving bands and scavenging off the battlefield. Optics yes, but then Chance Bros start outproducing Zeiss and ofc Britain has rubber, and oil and money and the ability to import.
The working German assumption pre WW2 was that war with Britain or France meant war with the US economy, no question. In WW1 the western front was supposed to be over inside 6 weeks it did not happen, the level of British Imports in 1914 is irrelevant, what matters is the level of British production in 15, 16, 17, 18 and 39-45 as a whole.
Even on the items you cite by late war (say 17 on, or 42 on germany s being outproduced and in the qualitatively outproduced.