hzexun Heavy Duty Spool Sewing Thread for woven polypropylene bags stitcher closer 1500ft (6 Rolls) : Amazon.co.uk: Home & Kitchen
BRAND™ Polypropylene Thread Adapters For Use With: Bottle Thread 30 GL, Dispensette, Seripettor, Titrette and QuikSip Products | Fisher Scientific
100% Polyester Polypropylene 1kg Bag Closing Sewing Thread for Industrial Bag Closer Machine - China Bag Closing Thread and Polyester Bag Sealing Thread price | Made-in-China.com