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About product and suppliers:
            1,346 fused silica block products are offered for sale by suppliers on Alibaba.com, of which refractory accounts for 28%. 

A wide variety of fused silica block options are available to you, 

There are 546 suppliers who sells fused silica block on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of fused silica block supply is 99% respectively.