equipment esmo assembly & service (a&s) carts and trolleys serve as carriers for test heads, probe cards, dut boards, and swift-boxes. They are specially designed to meet clean room requirements. esmo a&s carts optimize your production processes, reducing the complexity of assembly and transportation to a minimum. As test equipment is becoming more and more sophisticated, safety and reliability of transfer allow no compromise. esmo trolleys meet a wide range of requirements, and provide affordable safety for your equipment. esmo carts and trolleys - functionality at its best