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Crystalline silica was banned for most blast-cleaning operations in great britain in 1950 factories act of 1949 and in other european countries in 1966.In 1974, niosh recommended that silica sand be prohibited for use as an abrasive blasting material and that less hazardous materials be substituted for silica sand during abrasive blasting.
We are a large-scale joint-stock enterprise integrating scientific research, production and sales.Our leading products have crushing equipment, sand making equipment, mobile crusher, etc., Each type of product is with complete specifications. All products have passed ISO9001, CE and GOST international quality system certification.