bulk bags strip Karur grains length secure pouches reputed storage customer machines pet food chemicals efficient integrity thicknesses 15 kilograms Key features airtight seal transportation continuous band sealing material heavier products product freshness packaging machine various industries vertical orientation agricultural products Vertical band sealers adjustable temperature maximum weight capacity sealing pressure settings reliable sealing solutions 15 kg vertical band sealer different packaging materials 15kg Vertical Band Sealer- 15kg high-volume packaging operations Centra Autopac India Private Ltd