ASTM A252 is a standard formulated by the American Society for Testing and Materials (ASTM), mainly applicable to spiral steel pipes in the construction field,

EN10216-1 is a European standard, a seamless steel pipe standard. It stipulates the manufacturing and inspection methods of seamless steel pipes working at high

ASTM A106M is a standard established by ASTM (American Society for Testing and Materials), which stipulates the chemical composition, mechanical properties, siz

ASME SA213 is the standard of the American Society of Mechanical Engineers (ASME), which specifies the standard specifications for seamless medium-carbon alloy