Zhejiang Mengzhou Chemical Co., ltd., formerly the Zhejiang Qingyuan Dyestuff Factory, has been engaged in the R & D and manufacture of medium- to high-grade acid dyes and intermediates for more than 20 years. The company has one Operating Branch and two Manufacturing Plants with 150 employees including 15 technicians and 5 senior engineers. We are capable of the annual production of 2,300 tons of "Lengsha" brand acid dyes, with a producion value of 100 million RMB yuan. The Operation Branch, l...