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The difference about hot rolled steel plate and cold rolled steel plate
The hot rolled sheet has low hardness, easy processing and good ductility. The cold rolled sheet has high hardness and is relatively difficult to process, but is not easily deformed and has high...
Electric power fitting definition
What is the power fitting? Definition of power fittings: Power fittings are various types of devices that connect and combine power systems, and serve as metal accessories that transmit mechanical...