Yes. Shanghai Yixin Chemical Co., Ltd. will arrange a sample charge refund once an order is placed. Generally, we will set up a refund mechanism for customers who would like to place an order with a product quantity higher than the minimum order quantity set by us. The samples are only provided for free in the case of customers having a desire for further cooperation. Yixin Chemical guarantees offering samples with the same quality as the ordinary product, which has a high pass rate. Moreover, we offer discounts for large orders to maximize mutual benefits.

Shanghai Yixin Chemical Co., Ltd. is a fast-growing company of manufacturing high-quality borax powder. We stand out among many competitors based on years of extensive experience. Yixin Chemical focuses on providing a variety of fluoride chemicals for customers. The design of Yixin soda ash manufacturer is carried out by the in-house designers who hold qualifications and certifications in porcelain pattern making and creating. The product contains no toxic substances and it is eco-friendly. This product can significantly protect the feet from sharp objects and uncomfortable surfaces, which will help people fight against the tough roads. The product can easily dissolve in the water.

We specialize in cutting-edge production technology fro potassium fluoroborate and will create the best value for our customers. Please contact.