Explosion-proof junction box, junction box, thread box difference

Explosion-proof junction box, junction box, threaded box difference Explosion-proof junction box Scope: 1.1 Zone, Zone 2 explosive gas environment.

2. Area 20, District 21, Zone 22 Flammable dust environment.

3. Suitable for explosive environments IIA, IIB, and IIC 4. Suitabl

Using a die to machine the face

The crankshaft is a key component in the diesel engine. The dimensional accuracy and shape tolerance accuracy of each part of the crankshaft are quite high. The accuracy of the mounting surface and the holes on the flanges at both ends is also high. It needs to be mutually compatible with

The old budget of the decoration budget? Must find out the reason

Decoration budget is always super? This has become a universal problem for home decoration. Before the beginning of the renovation, it is generally possible to calculate the possible costs of various aspects of the renovation. Never thought that this "bottom" turned out to be a black

Lucky helpless! My family's Karma lock chain can't open!

I will share with you a real event I encountered. I bought a house in the whole year last year. I specially decorated it. Because my husband has a strong sense of anti-theft, I know that the anti-theft performance of different locks is different, so the anti-theft d

Lucky helpless! My family's Karma lock chain can't open!

I will share with you a real event I encountered. I bought a house in the whole year last year. I specially decorated it. Because my husband has a strong sense of anti-theft, I know that the anti-theft performance of different locks is different, so the anti-theft d

What is the sound insulation of curtains?

Curtain noise is actually able to play a kind of sound insulation effect. The soundproof effect of soundproof curtains is better than that of ordinary curtains. Besides, soundproof curtains can not only be soundproof but also have good shading effect, so some movie sites will choose such c

Power frequency withstand test bench operating procedures

I. Application range of power frequency withstand test stand:

The power frequency withstand test stand is a portable experimental device. The test voltage and leakage power are all digital display and used to test motor windings and electrical components. The electric

Power frequency withstand test bench operating procedures

I. Application range of power frequency withstand test stand:

The power frequency withstand test stand is a portable experimental device. The test voltage and leakage power are all digital display and used to test motor windings and electrical components. The electric

What is the price of Haier color TV?

The abbreviated color TV is a color TV. It is a visual image that uses the electric method to transmit the activity. Just like a movie, it uses a visual effect left by the human eye to display a still image whose frame gradually changes, thus f

Children's room who exceeded formaldehyde? Children should not bear these!

The topic of formaldehyde is believed to be familiar to everyone, but many people have misunderstandings about formaldehyde and believe that “there is no smell of formaldehyde or no pollution”. Little does they know that the free formaldehyde in the air lasts for 3-15 years. Formal

Children's room who exceeded formaldehyde? Children should not bear these!

The topic of formaldehyde is believed to be familiar to everyone, but many people have misunderstandings about formaldehyde and believe that “there is no smell of formaldehyde or no pollution”. Little does they know that the free formaldehyde in the air lasts for 3-15 years. Formal