Shandong CORRTECH Cathodic Protection technology Company is one of China�s Leading providers of Corrosion Control Materials. It can provide a complete line of rectifiers, MMO anodes, high silicon cast iron anodes, galvanic anodes, reference electrodes, exothermic welding metal power, grounding cell, test posts & junction boxes, and other anticorrosion materials. Insisting on belief of supplying you highly quality products with competitive price, advanced technology, best solution to corrosion problems, soon and valuable service, CORRTECH sincerely invite all friends over the world to cooperate with us and create a bright future together.