Ferrosilicon is an alloy composed of iron and silicon. 75 Ferrosilicon is an alloy composed of two elements: silicon and iron. It is a material widely used in the casting, smelting, and welding industries. According to different uses, 75 ferrosilicon can
We supply 7cm Steel Fire Door. Zhejiang Qianyita Fire Protective Technology Co., Ltd. is located in door capital of China, specializing in fire doors, steel fire door, wooden fire door, security door, wooden door, door lock accessories.
We are the extrusion factory supply aluminum extrusion curtain wall profile for building, we support aluminum extrusion profile in customization way, we can manufacture by the drawing.