Price of oxidized bitumen 115/15 made by blown asphalt
Price of oxidized bitumen 115/15 made by blown asphalt Price of oxidized bitumen 115/15 increased since raw material cost which is bitumen 60/70 jumped and it is direct relation between. Investment cost and processing cost during production of oxidized bitumen 115/15 is high since due heating of bitumen to oxidized it and reach the softening point to 115/15 …
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