How to calculate the slant length, opening diameter, fit-up of a roof manhole.
@technicalstudies. Donate paypal.me/Technicalstudies502
Негізгі бет API 650 STORAGE TANK CONICAL ROOF MANHOLE FIT-UP, TUTORIAL.
How to calculate the slant length, opening diameter, fit-up of a roof manhole.
@technicalstudies. Donate paypal.me/Technicalstudies502
Пікірлер: 16