Chinese New Year TV purchase book: purchase must pay attention to various parameters

Generally, there will be more or less "bright spots" on the LCD screen. The "bright spots" are not carefully viewed, so it is difficult to detect them. Therefore, consumers must carefully observe the screen when purchasing. The easiest way to do this is to make the screen black and see if there are bright spots in a piece of pure black. Then let the screen be white and see if there are any black spots. Last

The Preformed Fitting is mainly used in wire,ground wire installed hardware.                           

 According to the performance of the structure can be divided into:                                        

1. Preformed Suspension Clamp:used to hang the conductors and ground wires on the perch.                                

2. Preformed Strain Clamp:bears all tension,connect the wire and ground wire on the tension tower                    

3. Splicing Fitting:used to two ends of conductor,instead of the conventional hydraulic compression splicing sleeve and pressure pipe.                            

4. portective fitting:used to protect the conductors and insulators,generally divided into armor rod,repair sleeve,vibration damper.                     

Material generally adopt aluminum alloy,hot-dip galvanized steel.                                             

Fasteners are hot-dip galvanized steel.           

Preformed Fitting

Preformed Fitting,Preformed Line Fittings,Preformed Protection Fitting,Preformed Armour Rod

Jiangsu Chuandu Electrical Technology Co.,Ltd. , http://www.cdepf.com