公用电话零组件 听筒HT-500系列
2.超音波铆接-扭力测试150 LB/IN。
3.TR器采用高品牌（亦可由客户指定或提供）。
4.螺旋管采用SUS 304，伸缩性强，柔软度好，拉力经测试170 KGS以上。
5.导线采用Tefolon芯线，防火性佳及耐摩擦。
6.规格和长度可以按客户要求制作。
1.Handset was adopted PC material, with good antistrike and anticlimate nature.
2.Ultra-sonic bonding-twisted force test 150 LB/IN .
3.Transmitter and Receiver were adopted the high class brand
4.The spiral hose was adopted SUS 304
5.Steel cable was adopted 3/32*(7*19) air line cable, two ends were welded specially anti-drawing force over 170kg.
6.Conducting wire was adopted with tefolon high temperature wire
7.Insulation test is over DC 500V
2.Ultra-sonic bonding-twisted force test 150 LB/IN .
3.Transmitter and Receiver were adopted the high class brand
4.The spiral hose was adopted SUS 304
5.Steel cable was adopted 3/32*(7*19) air line cable, two ends were welded specially anti-drawing force over 170kg.
6.Conducting wire was adopted with tefolon high temperature wire
7.Insulation test is over DC 500V
