Small Wind Generators Inspired by Grass Swing

Have you ever seen a minimum wind speed of 1m/s for small wind turbines? The shape resembles the shutters. The louvers are several windsurfing boards. They can swing around and collect wind power to generate electricity. This kind of swing-fan-type wind power

How can a special car market be able to make money?

A friend who worked for a heavy truck company had sincerely asked the reporter: “If we want to enter the special car industry, which models do you think should be better?”

To tell the truth, at that time, the reporter was temporarily ignor

February 9 Nanhai Steel Market Die Steel Price Quotes


Unit: RMB/Ton City Name Specification Material Steel Plant/Origin Price Remarks Steel Resources Nanhai Cold Work Die Steel 21 Cr12MoV Dongte 15000 - - Cold Working Tool Steel Nanhai Cold Work Die Steel 21 Cr12 Long Special 128