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PVC VS vinyl cold-resistant electrical tape
Cold-resistant electrical tape is an insulating tape used to wrap pipes and wires. The two main types of cold weather electrical tape are PVC (poly...
Is PVC tape the same as electrical tape?
When encountering the danger of electricity leakage, tape can help us tide over the difficulties. There are many items that may require different t...

How to control the circuit of the household and similar use?
These days, almost every home, hotel, and office building uses a consumer unit switch box. Considering that it is the center of the wring system, t...

WHY YOU NEED 1X POWER LPVO SCOPE FOR SHOOTING?
Stephen: Hey, Evelyn, long time no see. How are you getting on? Evelyn: Every thing is great! I happen to have a question to ask you, are you free now? Stephen: Yes, it’s my pleasure.

WHAT IS COATING ON RIFLE SCOPE?WHY WE NEED THE COATING?
Evelyn: Stephen, are you free now, can we talk about lens coating? Stephen: Sure, any confusion? Evelyn: I can fully realize that coating can provide us a brighter image, but I don’t know why and how.

ARE PRISM SCOPES WORTH IT ?
Prism scopes have become more frequently used in recent years in many close range rapid shooting situations. To an extent, prism scope is the combination of Red dot sight and traditional optical scope.

About screw LD ratio
The L/D ratio is the ratio of the length of the screw to its outside diameter. The ratio calculation is calculated by dividing the length of the screw by its nominal diameter.