... an develop and produced ultrasonic 40k,35k,28k,20k,15k and other sections of the high precision ... in accordance with market demand,we also produced a various of non-standard and special welding equipment ... demand,our turntable device can be devided into 20k,15k,40k welding equipment,the user can choose ... welding efficiency;suturing performance,one machine to do a wide variety of applications as long as the ...