At Shanghai Yixin Chemical Co., Ltd., the freight of sample is collected. If we have some products in stock, we can offer one or two samples for free. But the international express freight is even more expensive than our samples. We are afraid that we can not pay the freight for you. But if you are satisfied with our samples and place an order, we can offer a discount to you. And if you are ordering a relatively large quantity of customized samples, we can cover the freight.

Shanghai Yixin Chemical Co., Ltd. has been accumulating years of expertise in manufacturing potassium borofluoride and have become one of the most competitive manufacturers. Yixin Chemical's potassium fluoroborate series are created based on unremitting efforts. All the raw materials of Yixin mica mineral are sourced from reliable suppliers who are able to meet our quality requirements such as softness, air permeability, sweat absorption, and water resistance. The product has been tested by labs for quality and purity. The product is deformation resistant. Its hardened materials can stand up to the high temperature in the bathroom as well as heavy loads. The product is not prone to color variation.

Shanghai Yixin Chemical Co., Ltd. is committed to creating a beat carbonate powder product system for customers. Check it!