★★★★★
Average rating on the App Store. Apple doesn't publish how many ratings each star has.
This app isn't in any of our charts yet.
SDK update
It is a manual of piping parts. Only Japanese specification. We are listed at the discretion of the things that seems to be in common use based on manufacturer's data and the dimension tables of dealers that are open to the public. Length units are in millimeters unless otherwise specified in decimal notation JIS standards compliance