Double 2  line Screw groove thread Silicon Carbide Rod widely used in small space oven and furnace,in which a U-Shape Silicon Carbide Rod can not be used ,then we can use Double 2  line Screw groove thread Silicon Carbide Rod,becasue it doesn't need large space.

Advantage: Powder saving 

                   long life.

Single line Screw groove thread Silicon Carbide Rod

It is designed based on same OD Silicon Carbid,after precise calculation,design,processing.

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