1.Various sizes,processing
2.cobblestone has various colors
3.Timely delivery
Port: Tianjin/Qingdao
Minimum Order Quantity: 20 Ton/Tons as per as your need
Supply Ability: 1000 Ton/Tons per Month as your requirement
Payment Terms: T/T
Contact SupplierPackaging Detail: 50kg/bag,1000kg/bag or as your request
Delivery Detail: 7-15 days after the receipt of the purchase order
Pebbles (gravel) filter material, commonly known as the supporting layer filter material or pad filter material, points (natural) pebbles and (machining) quartz quality.the two kinds. Natural cobble is through natural rivers, washing and excavation of screening, the approximate shape, and smooth surface, colour is pure white and noise. After crushing ores for quartz quality.the precision. Water filtration process is indispensable to underpin layer filter material.
USES: widely used in waterworks, mechanical filter, Yin and Yang of ion exchange water treatment supporting layer.
Product specifications:
Analysis items | Testing data | Analysis items | Testing data |
Silica | ≥98% | density | 2.6g/cm3 |
Hydrochloric acid soluble | ≤0.2% | Capacity | 1.85 g/cm3 |
hydraulic | ≤0.1% | Mohs’scale | 7.3 |
Common specification:2.0-4.0mm 4.0-8.0mm 8.0-16mm 16-32mm