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Summary:Hardness test: annealed stainless steel pipes with inner diameter of more than mm and wall thickness of less than mm can[Read the full text]
Summary:Mass production, and the non-woven packaging factories are far less developed, with the technological progress and consu[Read the full text]
Summary: & mdash; high strength cutting tool steel, can obtain higher yield strength after appropriate heat treatment, and the h[Read the full text]
