Sure, we could send our samples on stock for free, you just need to pay the freight.
Yes, we are OEM, can make the bag in specifications you need with your design draft.
Of course, we have our own professional designer, can help you design as per your demand.
Please contact me with details infomation of your project, like what to be packed, weight to filled ect. We could help you work out best solution with professional suggestions for high quality packaging efficiently.
AI, PSD, CORELDRAW, PDF
Resolution: at least 300DPI, and the higher, the better