Pan Xin Machinery Co., Ltd., Wuhan professional production and sales of various industrial mirrors, glass mirrors, depending on the cup. Zhang Tel 027-85585636 13986120115 
 The working principle of the valve endoscopic and related knowledge 
 Installation of small size, and the driving torque is small, simple, rapid, and also at the same time has a good flow regulation and close the sealing characteristics of endoscopy in the medium and large diameter, low pressure in the field of use, which is the dominant form of sight glass. 
 Purpose: The mirror can be used as high temperature, corrosion resistance, easy to poisoning, more dangerous and crystallization of the chemical tower in order to ensure their safety. 
 Structure: The endoscopic main floor by the mirrors, glass mirrors, valve components and other components.