Supplier: 1. nickel carbonate/oxide/hydroxide;
2. copper carbonate/oxide/hydroxide;
3. crude glycerin;
4. ammonium sulfate;
5. recycled fuel oil;
6. recycled rubber crumb and powder;
Buyer: 1. caustic soda;
2. sulphuric acid;
3. cupric chloride;
4. copper ammonia chloride;
5. soda ash;
6. calcium hydroxide;
7. e waste;
8. catalyst;
9. precious metal material;
