If the customer does have a solid single and want to look at the prototype, then I could provide housing sample (excluding memory chips, without LOGO slogans), courier fees paid by the customer. If you need to sample the real machine customers, sampl...
First, U disk is everyday office supplies. Now people can not do without the computer work, of course, inseparable from the U disk, U disk customer for highly viscous products, unless your customers do not have a computer, a high "accurate advertising" convey rate; ...