small quantity and large quantity are both acceptable Specification: 6kg,9kg,12kg,15kg,22kg,30kg,8kg,18kg,24kg Material: 55Q/Q235B Executed Standard: GB11264-89,YB222-63Length:6-12m Kindly hope you find me by(anshansl07 att gmail dott com),thanks! Should any of our products be interest to you,please feel free to contact us any time. Best regards, Ellan Sun