/s? bs = file type % 3 all+% CD % BC % CA % E9 % B9 % DD % D7 % DC % BD % e 1 & amp; f = 8 & ampwd = file type % 3 all+% CD % BC % CA % E9 % B9 % DD % C9 % E8 % BC % C6
You can also go to Leuven for construction services. There are such library design drawings that can be downloaded for free. You can go to them and see Zhu Long. com。