Inquiry (采购产品): Concave bag? Is it possible to make a 4"x6" bag with a concave bottom? Very thin if possible. I have a market for just such a bag in the teeth whitening business. Please call me at 260-413-9660, my name is Tom. Thank you **** Hidden Message ***** Tom Brookshire 46804 USA Company: L Spa Modern Title: Co-Owner Phone: 260-413-9660 E-mail: woolrock2003@yahoo.com **** Hidden Message ***** woolrock2003@yahoo.com