Features: 1) Width of channel steel: 8#-20# 2) Steel mark includes: SUS201, SUS202, SUS301, Features: 1) Width of channel steel: 8#-20# 2) Steel mark includes: SUS201, SUS202, SUS301, SUS302, SUS303, SUS304, SUS304L, SUS316, SUS316L, SUS321, SUS410, SUS430 Stainless Channel Steel