环网柜凝露怎么解决_电缆沟封堵装置_线缆孔洞封堵厂家_防潮封堵剂

"Mid-Autumn Festival" meets "National Day", Hangzhou Henma receives non-stop benefits!

"Mid-Autumn Festival" meets "National Day", Hangzhou Henma receives non-stop benefits!

2020-09-28 14:47

The development background of column tube occluder

2020-08-13 13:53

Hangzhou Hengma Power Technology Co., Ltd. is a manufacturer focusing on inflatable cable duct sealing devices, producing column tube occluders, inflatable cable duct sealing devices, tube plugs, lead pipe plugs, inflatable cable duct plugs,

Analysis on the importance of inflatable cable duct plugging

2020-07-29 12:03

A fire caused by a cable failure will cause a large area of the cable to burn, and production cannot be resumed in a short time, causing huge economic losses. Through accident analysis, the main causes of cable trench fires are poor manufacturing

Design Concept of Column Tube Blocker

2020-08-07 10:22

After investigation and research, there are some problems in the management of the market column. If rainwater enters the tube, the cable will be soaked in the water for a long time. Although some treatment methods are to drill holes at

Principle characteristics of cable duct sealing device

2020-08-03 09:40

The cable duct sealing device is composed of soft metal and multi-layer polymer materials to form an airtight bag. High temperature resistant waterproof strips are attached on both sides. When the inflation pressure reaches 2.80.2 kg