Welded flange of the universal standard

The common standard butt welding flanges of butt welding flanges have different classification standards in use, and are used and popularized according to certain methods and methods, exerting important functions and values, and can bring certain convenience and value to the users. Pipe flange

Polysilicon prices will continue to rise steadily

In recent days, due to the rebound of demand for raw materials in the solar photovoltaic cell industry at home and abroad, the spot market price of polysilicon in the country has reached around US$85/kg, and the quotation on the international market has even exceeded US$90/kg. The price has ri

China has developed a new explosive detector

A channel-type explosive detector for the inspection of luggage and suitcases successfully developed by the China Institute of Atomic Energy has recently passed the acceptance and review of relevant experts.

Worldwide, terrorists use hidden explosives for cheats, hija