Heavy! Tesla's first electric truck on the 9th Moon Phase


Tesla has always been famous for creating "exquisite and expensive" electric cars, and it can be called a nobleman in the field of electric cars. In the past few days, because of Tesla's first front-view photo of the electric truck, it has once again become the focus of.......

How to buy car insurance, safe and secure

How much of the auto insurance price is tricky? Claims records have been “stealed” and where did these false claims records come from? In the face of issues such as the owners of insurance, claims, what kind of insurance and claims concept is the m.......

Ball valve working principle and structural characteristics

The working principle of the ball valve is by rotating the valve to make the valve unblocked or blocked. Ball valve switch is light, small size, can be made of large diameter, reliable sealing, simple structure, easy maintenance, sealing surface and the spherical surface is often closed, easy t.......