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Shandong skadden mechanical tools co., LTD., specializing in the production of various specifications of double stay wrench (Angle/arc), ring spanner (convex rib/flat/concave reinforcement), amphibious wrench threw the/all (half), adjustable spanner (with plastic/phosphate/calibration/chrome plating), the whole series of sleeve group set of tools, products quality selection of carbon alloy steel and medium carbon steel. Using advanced processing technology production, product surface chrome plating, forging technology, after heat treatment, the quality of its products up to the American ANSI standard, German DIN standard and international standard ISO9002 international quality system, ISO9001:2000 quality system certification. Welcome to write, inquire, we will provide you with the best quality products and the most sincere service!