3, Moisture proof and seal between electrical connections.
4, Seal at the end of cable.
We are a professional surge protection devices (SPD) company that mainly dealing in SPD, base station auxiliary material series etc.. We are ISO9001:2008 certified company, from 2007 to now, we are always cooperating with China Telecom the top brand of communication industry, and built base station for them. Being in this field for 8 years, we have successfully in China, currently we are looking forward to expand our export markets. And we are distributor of 3M brand tape, our products have exported to Ecuador, Singapore etc..