Double pressure feet and teeth interact up and down feeding, car seams are smooth. Double pressure feet and teeth interact up and down feeding, car seams are smooth. Double pressure feet and teeth interact up and down feeding, car seams are smooth. A tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n Double big buses and shuttles, eliminate the trouble of frequently changing shuttles bottom line, reduce the waste of working hours, improve the sewing efficiency; Double buses and shuttles, eliminate the trouble of frequently changing shuttles bottom line, reduce the waste of working hours, improve the sewing efficiency; Double buses and shuttles, eliminate the trouble of frequently changing shuttles Fully automatic fuel cycle system, can effectively reduce the loss of parts, extend machine life, and smooth without noise when operating. Fully automatic fuel cycle system, can effectively reduce the loss of parts, extend machine life, and smooth without noise when operating. Fully automatic fuel cycle system, can effectively reduce the loss of parts, extend machine life, and smooth without noise when A lëu bï ya luui në bags, gloves, leather suits, tents etc.