the company in July 1999 and July 2001 are manufacture of meter equipment of advanced units in Hebei province, existing qingxian yan River instruments co., Ltd., already has a strong economic and market competition, and first-class research, management and sales personnel, we firmly believe that, in the majority of users with the support of friends, and then struggle a few years will be largest and measuring instruments for driving the country's oil industry! Yan He tomorrow will be more splendid.
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