sulfur black, eo hape e tsejoang e le ethyl sulfur pyrimidine, ke dae ea maiketsetso e sebelisoang haholo indastering ea ho daea, ea mebala le ea enke. Indastering ea masela, dae e ntšo ea sebabole ke eona dae e ka sehloohong ea ho daea likhoele tsa cellulose, e loketseng haholo lihlahisoa tse lefifi tsa masela a k'hothone, ao har'a ona L...
Bala haholoanyane