Zhoushan Taisu Machinery Co.,Ltd is a manufacturer,speciallizing in producing screws,barrels,gearboxes,injection molding machine and extruder in China. We have been in this industry for over 10 years,we have profuse designs with series quality grade,and expressly,our price is very competitive,because we're manufactory,we're the source.Any products in need plz don't hesitate to contact.