we are seeking a manufacturer in chinese mainland to provide us with following 1.plastic bags for supermarkets. width - 27cm. after openeing - 41cm (7cm from each side) length- 50cm (including grips) thickness - 15 micron simple printing of 3 colours order - 3 millions. 2. dust-bags. width - 50cm, rolled up in 4 layers length - 60cm thickness - 5 micron each roll 50 pcs. colour - black order - 5 millions pcs