Sorry cannot really type a Pinyin here.
Any recommendations about how much normally cost for a engineer to install 2 emergency stop switch, one for gas and one for electricity, for a commercial property, a Chinese takeaway.
Thanks
Sorry cannot really type a Pinyin here.
Any recommendations about how much normally cost for a engineer to install 2 emergency stop switch, one for gas and one for electricity, for a commercial property, a Chinese takeaway.
Thanks
what do these two switchs make use for?
No more details?
就是如果出事,按下就切断煤气和电源