共 50 条
- [1] RECYCLING OF RAW-MATERIALS - THE PROCESS TECHNOLOGY KUNSTSTOFFE-PLAST EUROPE, 1994, 84 (02): : 109 - 112
- [5] ECONOMICS ON RAW-MATERIALS BY PLANNED CUTTING OF COMSUMPTION OF RAW-MATERIALS LEBENSMITTEL INDUSTRIE, 1975, 22 (10): : 449 - 450
- [6] METALLSPIEGEL - NEW WAYS IN SEARCHING FOR RAW-MATERIALS AND IN UTILIZATION OF RAW-MATERIALS METALL, 1977, 31 (03): : 216 - 217
- [9] NEW PROCESS FOR IMPROVED EXTRACTION OF RAW-MATERIALS BY PYROLYSIS ERDOL & KOHLE ERDGAS PETROCHEMIE, 1978, 31 (07): : 328 - 328