Silicon metal/mn/mg/cr/nb/ta.
Htv silicone rubber ,liquid silicone rubber and silicone gum.
Silicon metal
2202.2502.2505.4202.421.3202.3302.3303.3305.4402.4403.4405.441.5502.5503.551.552.553.653.853..
Ferro silicon .
Silicon metal(521/421).
Ferrosilicon, High Carbon Silicon, Silicon Carbon Alloy, Silicon Carbide.
Silicon metal.
Ferro silicon.Trading