The valve has character of axis of symmetry and type of wafer connection. It is small, light, simple and compact structure, convenient dismount and maintenance, flexible operation and is driven by handle, worm gear, pneumatic and
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TIANJIN DAZHAN GROUP CO.,LTD.VIP会员第12年
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The valve has character of axis of symmetry and type of wafer connection. It is small, light, simple and compact structure, convenient dismount and maintenance, flexible operation and is driven by handle, worm gear, pneumatic and
