Tender For corrigendum : supply of impulse heat sealing machine dies c c - impulse heat sealing die 100 mm x 15 mm , impulse heat sealing die 100 mm x 25 mm , impulse heat sealing die 200 mm x 15 mm , impulse heat sealing die 200 mm x 25 mm , impulse heat sealing die 300 mm x 15 mm , impulse heat sealing die 300 mm x 25 mm , impulse heat sealing die 500 mm x 15 mm , impulse heat sealing die 500 mm x 25 mm