久久中文字幕人妻熟AV女,亚洲精品久久区二区三区蜜桃臀,成人片又黄又爽免费视频,中文字幕一精品亚洲无线一区

PVC Wire Channel Encyclopedia
PVC Wire Channel Encyclopedia

Time:2019-6-4

PVC wire groove, that is, polyvinyl chlorid (PVC = polyvinylchlorid, a synthetic material), is commonly referred to as line groove, electrical wiring groove, line groove, etc. PVC groove is a kind of groove. There are many kinds of grooves. According to the different materials, the grooves are divided into many kinds according to the daily growth of the wiring equipment industry. The commonly used ones are environment-friendly flame-retardant PVC groove, halogen-free PPO groove, halogen-free PC/ABS groove, steel and aluminium metal groove, etc.

Characteristic:
Made of PVC plastic, it has the characteristics of insulation, arc-proof, flame-retardant and self-extinguishing.

Purpose:
The internal wiring of PVC cable groove gas equipment plays a mechanical and electrical protection role for the wires laid therein in the electrical equipment of 1200V and below. After use, the wiring is convenient, the wiring is neat, the installation is reliable, and the wiring is easy to find, maintain and change.

Specifications and models:
There are many kinds and specifications of PVC trough, from the model point of view:
PVC-20 Series
PVC-25 Series
PVC-25F Series
PVC-30 Series
PVC-40 Series
PVC-40Q series, etc.
Specifications are as follows:
20 mm*12 mm,
25mm*12.5mm,
25mm*25mm,
30 mm*15 mm,
40mm*20mm,
14mm*24mm,
18mm * 38mm, etc.

The above is edited by Essen Electrical Plastics Co., Ltd. at http://www.aisend.com./

Baidu Encyclopedia Reference

Copyright ?2019 Foshan Aisent Plastic Electrical Appliances Co., Ltd. 粵ICP備10008353號By:yinxiang