Please quote for the following wholesale product requirement - Product Name: Silica Rock Specifications : Size: Over 20cm Up Pictures Of The Product Required Qty: Trial Shipment Is 10000 Metric Tons, The Monthly Quantity Is 50000 Metric Tons Per Month For 12 Months Quantity Required : 10000 Metric Ton/Metric Tons Shipping Terms : CIF Destination Port : Shanghai, China Payment Terms : L/C Looking for suppliers from : Worldwide Contact : Mary Huang