black big lava rocks - 20-40mm
Type: Basalt | Place of Origin: Hebei China (Mainland) | Brand Name: SMN | Model Number: 20-40mm |
Color: Black | Surface Finishing: Tumbled | Stone Form: Cut-To-Size | Stone Name: Basalt |
Moisture: 1% | Apparent density: Kg/m 3 640-860/(390*240*190) | Volume-weight(kg/m3): 430-870 | Heat conductivity coefficient w/(m.k): 0.326 |
Water absorption: 11.7-7-17.3% | Hollow ratio(%): 48/(390 *240 *190) |
1.Introduction of volcanic stone(lave stone/pumice stone):
- Volcanic stone is a functional kind of environmental protection material.
- It is a kind of precious and polyporous stone, and formed by volcanic glass ,mineral and air bubble in the process of volcanic eruption.
- It contains sodium, magnesium, aluminum, silicon, calcium, titanium, manganese, iron, nickel, cobalt, molybdenum, and other dozens of minerals and trace elements.
- It has no radiation .
- It has far infrared magnetic wave.Natural stone
2.Features ofVolcanic Stone :
- Heat absorbing and preserving
- Water absorbing
- Green and environmental-protection products with high quality
- Slide-proof, acid &alkali proof
- Sound absorbing and insulation
3.Application area
- Contruction
- Grinding
- Barbecue
- Filter Medium
- Water Conservancy
- Garden Landscaping
- Soilless culture
- Ornamental products
- Stone treatment. It can help to eliminate the toxin of human bodyand promotemetabolism.
Pp bag,25kg/bag,50kg/bag,or as customer's request
Sales points or Focus :
1.Quality assurance both for our products and service for after-sales.
2.Favorable price.
3.More then 10 years of experience on production.
4.More then 10 years of experience on export business.
5.OEM and ODM service provided.
Description & Features:
See the introduction of each packing from our web.
Quality guarantee:
1.We provide 1 years warranty of product.
2.We don’t short of net. Weight or length.
3.We guarantee our mass products quality full same as the confirmed samples.
Shipping Info.:
We can accept appointed shipping company or booking ship for client. Tracking the containers until client receive the goods.
Contact:
We will reply your email or fax within 24 hours
You can call us at any time if there is any question on our production
- we have our sepiolite and vermiculite mine.
- the mining capacity is 60,000tons per year.
- he production capacity is 30,000 per year.
- Our market cover various countries and regions.
- Keep the mutural benifit and integrity as our princeple.
Enterprise Authorization certificate
Packaging Detail:50kg/bag or jumbo bag |
Delivery Detail:7-15 days after confirming the order |