Home > categories > Minerals & Metallurgy > Copper Pipes > Every time we question the longest bobbin how long do you know? Frighten you 35 meters!! The effect of 5 horses did not drop anything! As long as you can add appropriate fluoride this 10 meters completely. I'm sure!
Question:

Every time we question the longest bobbin how long do you know? Frighten you 35 meters!! The effect of 5 horses did not drop anything! As long as you can add appropriate fluoride this 10 meters completely. I'm sure!

What kinds of welding electrodes are used in the copper tubes for air conditioning? What's the difference?

Answer:

There are two kinds, one containing silver, one containing phosphorus. The former is used in a high sulfur environment, and the price is about three times higher than that of the latter
There are two kinds, one containing silver, one containing phosphorus. The former is used in a high sulfur environment, and the price is about three times higher than that of the latter
There are two kinds, one containing silver, one containing phosphorus. The former is used in a high sulfur environment, and the price is about three times higher than that of the latter

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