ผลิตภัณฑ์โลหะ
เอกสารมาตรฐาน
สหรัฐอเมริกา
AASHTO
M 54M/M 54-22
Welded Deformed Steel Bar Mats for Concrete Reinforcement
2022
4
HM42-2022 part 1
This specification covers material in mat (or sheet) form fabricated from deformed steel bars to be used for the reinforcement of concrete. Mats are made from two layers of bars that are assembled at right angles to each other ...