Stainless Steel Channel Size:6# -20# Surface:Pickled/polish finish. Certificate:ISO9001:2000 ... ,such as machine building industry,food industry,petrochemical industry,medical device,building and decoration.Shape: U-channelMaterial Grade:201,202,301 ... can polish finish if you need. 6#,14#-20# Welding channel,pickled/polish finish.Length:6 meters,or according to your ...