Please quote me these tubes, . Thanks, ... ITEM COMMODITY NAME material OD1 OD2 TK thickness LENGTH QUANTITY 1 square steel pipe, Alloy 4130 25 25 1.65 6 10 2 square steel pipe, Alloy 4130 40 40 1.65 6 10 3 square steel pipe, Alloy 4130 50 50 3.05 6 10 4 round steel pipe, Alloy 4130 40 3.96 6 5