... atuomatically. 4.Sheet metal nonrectangular columns,Coattails groove design,welding more precision. 5.Two hands pneumatic,Have ... 650*950*2250Net weight(kg)121kg121kg131kg238kg(Floor)Application fields:(ultrasonic plastic welding equipment): Widely used in the automotive ... brush, daily necessities, health supplies, children's products, air mattresses, clothes hangers, tool holder, coffee pot, cover ...