In light construction applications such as ceiling frames, canopies & other structural framing systems, many people still judge hollow sections mainly by thickness.
Dalam konstruksi rangka seperti plafon, kanopi, partisi, atau struktur ringan lainnya, banyak orang masih menilai kualitas hollow hanya dari ketebalan materialnya.
ASTM A795 is an international standard from ASTM International for welded steel pipes specifically designed for fire sprinkler systems and water distribution lines.