NSS Test Introduction (steel corrosion)
NSS test is widely used to test the accelerated steel corrosion. It is in a special test box, and people spray a mist, including 5士0.5% sodium chloride, and 5-7.2 brine [...]
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01, 2017
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01, 2017
The steel market is unstable, and how much will the steel price decrease?
About invest shares of PPP project, the investment in the half of 2016 increases quickly. Besides, the data of diggers surpass the expection, and capital construction will be continuous in [...]