Collcfohonium industries in Cen'tralJava are potential enough to be developed • a• source of income for people liuirw near the forest a well a for Perum Perhutani.Bated on the study at several collophonium factories, the averagelabourproductivity for administl'ativelab(!urandtechnician were 742 ton/man and 121,8 tori/man rapeetively. Jlaclainaryeflkiency averageWal 72 %, and that for material Wal, 189 %. The avm11te ef'/fciency for Coat used by private tac,torywaa 1,86 and.for Perum Perhutani 1,83. Actual total ~ost spent were Rp. 83,886,288 and Rp. 90,27'!,158,ctively, for factories run by private sector and Perum Perhutani.
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