Laser engraving: No need to open the mold, 

The engraving fee is charged for each piece,

The unit price also depends on the size of the logo Minimum order of 50

But the logo needs a vector diagram in CDR or AI format. 

For silk screen printing, you need to open the screen, usually in single
color, mainly black. Imprinting requires a mold fee,

 and it can be reused after the mold is opened.