SIRS: CHANGSHA ZHITONG ELECTRIC EQUIPMENT CO. LTD I am the engineer JUAN CAMILO MEJIA MONTOYA responsible for the construction of the 13.2kV transmission line for the Small Hydroelectric Plant Las Palmas in COLOMBIA; Some time bought a set of disconnectors type blades, along with this came the mechanism of manual operation, But these equipment arrived without their operating manuals, installation, technical data sheet and their certificates of manufacture (international). At the moment we are in your installation so we require the above mentioned documentation, especially the operation manuals, installation and international certifications of the manual opening mechanism. Certificates and manuals must be in English for your complete understanding. Show More