Specifications: QG737/747/757 SUPER HIGH SPEED OVERLOCK SEWING MACHINE Our features Applicable to the over edging operation of thin ,moderate and thick fabrics.due to its automatic lubricating device,the machine operates perfectly and smoothly at low sewing tension,and perfect stable stitches even at high speed seaming . QG 737 APPLICATION Applicable to overedging and over locking for knitting, backward seam for underwear side and shirt sleeve edge, Applicable to handkerchiesf ,coif and stockings, etc. Technological card Needle DC*27 9# Needle no. 1 Needle gauge 0 Thread no. 3 Stitch width 4mm Stitch length 3.6mm Heitht of presser foot 5.5mm r.p.m. 6000 differential ratio 0.7--2 volume 47cm*33cm*48cm G.W 34.5kgs. Unit price FOB NINGBO U.S.D 181.8 per piece QG747 APPLICATION Applicable to backward seam for underwear side and shirt sleeve edge Applicable to elastic cord seam,such as swimsuit ,underwear Applicable to knitting ,swimsuit and moderate material Technological card Needle DC*27 11# Needle no. 1 Needle gauge 2mm Thread no. 4 Stitch width 4mm Stitch length 3.6mm Heitht of presser foot 5.5mm r.p.m. 6000/5500 differential ratio 0.7--2 volume 47cm*33cm*48cm G.W 34.5kgs. Unit price FOB NINGBO U.S.D 183 per piece QG757 APPLICATION Be suitable for knitted strip of thin material ,and the strip can be changed into piping-strip Applicable to shirts,trousers,jeans and other heavy materials Technological card Needle DC*27 14/16/9# Needle no. 1 Needle gauge 3/5mm Thread no. 5 Stitch width 5/6mm Stitch length 3.6mm Heitht of presser foot 5.5/6mm r.p.m. 5500 differential ratio 0.7--2 volume 47cm*33cm*48cm G.W 34.5kgs. Unit price FOB NINGBO U.S.D 191.8 per piece Other information Minimum quantity ordered 10pcs Quantity supplied for one year 10000pcs Terms of payment by irrevocable L/C at sight in our favor available opened by the first class bank or T/T Time of delivery 5-6weeks after the covering L/C reached to us OR receiving your deposit Terms of shipping by vessel