来自MSN24 年
What Is CPVC Pipe? Here’s Everything to Know
What Is CPVC Pipe? CVPC pipe is a hard, thermoplastic plumbing pipe. “CPVC piping is similar to PVC piping but also very ...
BBC13 年
Hands-on science: Magnetic Copper
The size of the magnet compared to the inside diameter of the copper pipe is important ... due to its diamagnetism. Water is also diamagnetic so things with lots of water in them can be pushed ...