... steel make specially,accurate andaccrate,easy to operate,durable in use.2.Adopt and bring transmission step,controllatitude hook movement,steady ... platform ofmaking etc.there is not a noise,the speed is fasrer.3.Disconnected yarn automatic brake ... .0 Acceptable Micrometer 100-125 mm 3 2.0 Acceptable Dial indicator 50-160 mm 3 2.0 Acceptable Angle ruler 0 ...