... , carbonized, chocolate7Formaldehyde EmissionEurope E1 Standard, ASTM E 1333: 0.02ppm8CertificationISO9001,ISO14001, CE9Cooperation OEM provided Advantages: 1. Durable, abrasion resistance, sound-proof ... other chemical corrosion , easy maintainance 5.Renewable resource,environmental friendly Bamboo tables and chairs-Carbonized color