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　　Chemical composition of 420J2蘇州東锜In the course of long-term operation, the company has established long-term friendly cooperative partnership with many steel mills at home and abroad: HITACHI metal special steel, Datong DAIDO special steel and SUS series.不銹鋼, Sweden's ******** "One Win One Hundred *****" tool steel, Germany's "Suster" special steel, Austria's "Bailu ******" tool steel, the United States "FINKL" special steel and "ALCOA" aluminum, Japan's high-frequency "KOSHUHI" special steel, Germany's "Glitz" special steel and other well-known foreign tool mills. At the same time, we have long-term cooperation with domestic Baosteel Iron and Steel Co., Ltd., Fushun Xinfu Steel Co., Ltd., Great Wall Special Steel Co., Ltd. and Wuyang Iron and Steel Co., Ltd.

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