产品名称
Type

型号规格

备注
Remarks

标准号
Criterion

送话器
Sender

带盖 无哨
With cover without whistle

带盖 有哨
With cover with whistle

受话器
Receiver

无盖
Without cover

有盖
With cover

管路转动接头
Piopeline rotation ronnection

弯45°配送话筒
With45°degree angle sender

弯90°配送话筒
With90°degree angle sender

传话管路
Network

铜抛光
Brass po