Chemical Industry Using Explosion-Proof Telephone JWBT858A With Loud Speaker

Product Attribute:

Defend grade:IP65

Working voltage:AC220V 50Hz

Applicationt: 

china coal

Production Description:

chinacoal12 m.chinacoalintl.com     Chemical Industry Using Explosion-proof Telephone JWBT858A with Loud Speaker

 Keywords:telephone,safe telephone,explosion proof telephone

Product Introduction

1.The telephone can compose independent ommunication system.
2.the way of system calling:A hundred responses to a hundreds
<