(4) Hardness: the hardness of natural crystal is large, and the stone is gently scratched on the jewelry, without leaving traces; If there are streaks, it's fake crystal.
The interface is the display component that gives you access to your control box. It allows you to set your control box or even perform diagnostics. Typical control box interfaces come in the form of switches and boxes. However, there are advanced interfaces that include touchscreens.
In plumbing and automotive contexts, self-fusing tape serves as an effective tool for sealing leaks in hoses and pipes. Its ability to conform to different shapes ensures a tight seal, thereby preventing leaks from escalating into more significant issues.