Physical Rubber prices remained unchanged on Saturday after natural rubber imports stayed relatively high in the domestic market, with ANRPC data showed that India imported 41,000 tonnes of natural rubber in September as against the import of 35,100 tonnes in July and 40,500 tonnes in August. Meanwhile, major consuming industries were mostly inactive during the last week. Spot prices for RSS-4 and RSS-5 variety closed unchanged at Rs 170/ kg and Rs 168/ kg respectively.