Depending on the carbon content of steel

It can be used for quite resistant parts, transmissions, engine cylinders as well as machinery elements.55% carbon percentage, 70-75 kg / mm2 strength and 200-220 HB hardness. There other elements which are necessary for their…

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The cow manure organic fertilizer equipment has stable operation

It is not easy for customers to earn every penny.How to choose cow dung organic fertilizer machine manufacturers?Posted by Tianci on December 7th, 2019The cow manure organic fertilizer production linecan effectively reduce the eutrophication of…

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