26-05-2025
16
Chemical
Refractories
340 L.E.
مواصفة الجمعية الامريكية للاختبار والمواد ASTM C 579/2023 Standard Test Methods for Compressive Strength of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes.
New
Not Obligatory
91.100.10