共 50 条
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- [24] FUTURE OF RAW-MATERIALS SUPPLIES AND CONSERVATION OF RESOURCES METALLURGIA ITALIANA, 1976, 68 (02): : 65 - +
- [25] AVAILABILITY AND COST FOR RAW-MATERIALS FOR PULP AND PAPER-INDUSTRY NORSK SKOGINDUSTRI, 1976, 30 (01): : 9 - 11
- [28] DEVELOPMENT OF THERMOMECHANICAL PULP FROM ECONOMIC AND RAW-MATERIALS VIEWPOINT ZELLSTOFF UND PAPIER, 1977, 26 (10): : 310 - 310
- [30] QUALITY ASSURANCE OF RUBBER INDUSTRY RAW-MATERIALS KAUTSCHUK GUMMI KUNSTSTOFFE, 1988, 41 (05): : 437 - 440