Zhengzhou HAIXU was founded in 1999 as an foundry ceramsite sand manufacturer in China. With almost 20 years experience in foundry and refractory industry, HAIXU have provide reliable foundry material and professional support on many foundry plants. By choosing high quality mineral all over China, adopting strict production and quality control process, HAIXU now is one of the biggest ceramsite sand manufacturer in China. We have powerful technical support team to offer most professional service to customers all over the world.As Ceramsite sand is a round shape foundry sand with high strength and high refractory, it could be recycle used in the process including shell moulding casting,investment casting,no-bake sand casting, sand casting,etc. HAIXU always delicate our effort to help customer to make production more efficiently with low cost and low enegy consumption. We will try our best to impove environment-friendly foundry method