1. What can you purchase from us? Expanded vermiculite, vermiculite flakes, mica, colored sand, etc 2. How can we ensure quality?We believe that quality is controlled through the entire order process. The agreed upon starting quality standards by bothparties. Our full process inspection consists of raw material inspection, mid-term inspection, final inspection, and sampling inspection. 3. What are our advantages? Our quality expert team ensures that all of our products undergo thorough inspections from raw material procurement to customer delivery, and comply with international quality standards. 4. Can we visit your factory? Yes,of course. You are welcome to visit our factory anytime.