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цайрын сульфатын бордоо импортлогч
цайрын сульфатын гептагидрат, цайрын сульфатын гептагидрат бөөний ... We attach value to innovation, specifically with patents of China on zinc sulphate heptydrate, its excellent technologies has reached the international sophisticated level, and has a higher reputation inside the zinc sulphate heptydrate sector.