Guangdong Deqing Ammeter Manufacture CO., LTD. which is founded on May, 1971. It is a long-history enterprise which is specialized in the production of alternating current and direct current ammeters or voltmeters, power factor meters, frequency meters, power meters, digital display meters, current transformers(CTs) ,current diverters(shunts), current limiting reactor , bus bar frames, corresponding accessories and full-set products. All products have certificate of conformity for electrical equipement from govermment.