inclusive of iron machinery prior to 1901 ; also of ' cycles and parts thereof prior to 1902 . 2,386 1,942 2,512 1,843 35,733 and ores : copper , manufactures of iron and steel , of all kinds 1 silver , ore of oil : petroleum value tons .
we are large mining machinery manufacturer and exporter, located in Zhengzhou, Henan, China.
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