Introduction to boiler plate

One of the major categories of steel plates - boiler plates: mainly used for boilers. Heat treatment: hot rolling, normalizing, controlled rolling, annealing, tempering + normalizing, quenching and tempering. The implementation standard of the boiler plate of the national boiler board is GB713.

Carbide Balls And Seats

Carbide Balls,Carbide Seats,Cemented Carbide Ball

Drilling bits Mining bits,Carbide Inserts Co., Ltd. , http://www.nscarbide.com