It depends on how many samples of carbonate powder you require and whether we have some in stock. If we have some in stock, we can offer one or two samples for free. And if we are out of stock or your required sample needs to be customized, we are afraid that we can not offer the sample free of charge. But the sample fee can be refunded once you place the order. Welcome to contact us!

With an exceptional design and manufacture capacity, Shanghai Shanghai Yixin Chemical Co., Ltd. Co., Ltd. has surpassed many other manufacturers in offering quality borax powder. Yixin Chemical has created a number of successful series, and mica flakes is one of them. carbonate powder is made of imported materials and has the advantages of carbonate chemical. The product has a good performance of moisture divergence. This product has achieved good results in practical applications. The product features outstanding melting and boiling point.

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