for sewing tent, camp and saddle with linen cloth wheel, canvas , leather and felt. 1.Working space; 2.Stitch length:0- ... for sewing tent, camp and saddle with linen cloth wheel, canvas , leather and felt.Description:GB4-1 Large sewing machine for ... thick material adopts single-needle and oscillating shuttle, upper and lower synchronized feeding, forms 2-thread lock stitch. It ...