강관
Steel pipes for Ordinary Piping

Steel pipes for Ordinary Piping
Carbon steel pipes for ordinary piping
Carbon Steel Pipes for Pressure Service (SPPS/STPG) KS D 3562-1989
Carbon Steel Pipes for Structural Purposes (SPS) KS D 3566(JIS G 3444)
-정사각관 KS D 3568(JIS G 3466)
KS D 3568(JIS G 3466)
KS D 3568(JIS G 3466)
Carbon steel pipe for ASTM A53 piping (including socket)