1) Applications: electric sofa , massage chair,reclinear chair 2) Silence and limit swtich built-in 3) UL and CE certificate Linear Actuator Specification1) Applications: wheel chair motor, sofa parts, chair parts, hospital and care beds, wheelchairs, patient-lifters, working tables, skylights, recliners, medical equipment, dental chairs, handicap equipment, ergonomic furniture, tables, pedestals ...