... machine Product description: It sews the bags with a single line and has the advantage of easy dismantling. This machine ... are full of grain, salt, sugar, chemical fertilizer, ore sand, powder, rice, flour, cement, chemical products, forage, plastic, raw materials, ... Maximum sewing speed:900r/min Stitch type:101 single line Sewing line specification:21pcs,12-18 cord-threads Stitch length:5-11mm( ...