About water treatment material walnut shell
142 water treatment material walnut shell products are offered for sale by suppliers on Alibaba.com, of which abrasives accounts for 55%, chemical auxiliary agent accounts for 30%, and water treatment machinery accounts for 8%.
A wide variety of water treatment material walnut shell options are available to you, such as yellow, brown and light yellow.You can also choose from corn cob, water treatment material walnut shell,