Boteli Valve Group Co.,Ltd.being a member of China Valve Association,a net work member of China Petroleum Natural Gas Company,and the appointed manufacturer for China petrochemical, is a non-region-limit group. The company was set up in 1983,and now has 756 staff,including 3 senior engineers and 155 technicians. The company locates in BTL Industrial Park, Sanqiao Industry Zone, Wenzhou, China, which covers an area of 38,000 square meters ,and the building area is 28,000 square meters.There are more than 10 workshops, comprising casting, w..