... 11:Payment: 30% deposit before mass production,the balance need to be paid before delivery. ... size:We often say that the 14 #, 16 #, 18 #, 20 #, 60 #, etc.3)The standard formula: diameter = 0.625 ... Model * (mm).If there is a button in our hands , but do not know the ... and customers.2.Our produce export all over the world including Asia ,middle east ,Africal ,Europe ...