... 3.usage:chemical plant,river sludge treatment About the product: The product is manufactured of PP fiber by ... is 2000x2000 or others, you must choose the filter cloth with the size of 2100x2100mm, otherwise you will fail ... in matching with your filter board. About the sample: we can offer free sample timely,but ... goods in our warehouse, you can send the goods within 3 days, if not ,we will deliver ...