charcoal for restaurants and bbq

Feature:
1) no smoke, no odor, ignite quickly and safely
2) longer burning time than common charcoal: more than 3 hours
3) no additives, high density, totally carbonized
4) widely used in living (especially in BBQ) , chemistry, metallurgy, construction and agriculture
5) forms: hexagonal, rhombic, square
6) inside is hollow
7) can be produced as per requirements
Quality:
1) calorific value: 7, 500-8, 300kcal
2) ash content: <5%
3) fixed carbon: more than 85%
4) volatile matter: <4. 5%
5) moisture: <4%