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Marketing research data is essentially of two types, that have already been defined secondary and primary.With respect to primary research, the foremost tool is the personal interview.The face-to-face contact between researcher and respondent is not equal in terms of the potential quality of data that can be obtained.
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.