Production Technology [Daily Question] Thursday, September 22, 2011
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This post was last edited by a refinery operator at 2011-9-23 06:37.: 1. For chemical equipment that uses highly corrosive media, corrosion-resistant stainless steel should be used, and () stainless steel should be used as much as possible. A. Contains manganese ； B. Chromium-containing nickel ； C. Contains lead ； D. Contains titanium. 2． Carbon steel and cast iron are both alloys of iron and carbon. The main difference between them is the content of ( ). A. Sulfur ； B. Carbon ； C. Iron ； D. Phosphorus. Note: 1. Please hide the reply, see the method: http://bbs.hcbbs.com/thread-492556-1-1.html . . k8 \2 h, E5 \" {/ U 2. Please do not edit after replying. 3. Participants must be rewarded. Answer: 1B 2B
Reply 1# * nyang3390 B,B
Reply 1# * nyang3390bb
Reply 1# * nyang3390BB
This post was last posted by * nyang3390 edited this post at 2011-9-22 13:33. The hidden content of this post requires a reply before you can view it.