I would like the explain as follow ;
1st Item. : We are change the size 1.6 mm. to 2.0 mm.
2nd Item : We are using increase and change the size 1.6 and 2.4 to 2.0 mm.
3rd Item : the item is Brass , Now We have the problem oxide on surface after welding.
4th Item : current used size 1.6 and 2.4 . We would like change to combine the size to 2.0 mm.