Joke Collection Website - Mood Talk - There are several kinds of threaded seals.
There are several kinds of threaded seals.
There are many methods of thread sealing, which are beyond the reach of high technology. Let's talk about common pipe thread sealing.
one. Hemp-thick paint, this is the most traditional.
second, PTFE raw material belt.
third, sealant.
fourth, if the internal and external threads are made of steel and copper, as long as they are tightened, no sealing material can be used.
- Previous article:Very sad sentence
- Next article:What did Changan Automobile do during the anti-epidemic period?
- Related articles
- A depressing sentence that is suitable for girls to send friends and completely give up hope for men.
- What are the sentences that describe "rapid heartbeat"?
- What does it take to be a female anchor?
- Tik Tok Cross Love Words 10 on Beautiful Words
- After getting hepatitis B, I always want to die.
- About Chengdu blood test, how much does it usually cost?
- Say goodbye to the saddest place.
- Can angelica soak in wine? The best formula of Angelica sinensis soaking wine
- < < Jianghu trip > > Li Bai is full of urgency! ! ! !
- Go for an outing with a good friend.