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http://bbs.hcbbs.com/static/image/hrline/line7.pnghttp://bbs.hcbbs.com/static/image/hrline/line7.pnghttp://bbs.hcbbs.com/static/image/hrline/line7.pnghttp://bbs.hcbbs.com/static/image/hrline/line7.pnghttp://bbs.hcbbs.com/static/image/hrline/line7.pnghttp://bbs.hcbbs.com/static/image/hrline/line7.pnghttp://bbs.hcbbs.com/static/image/hrline/line7.pngRecently, after attending training on the safety management of special equipment, I have come to realize that only by having a thorough understanding of relevant knowledge can one better manage production processes. Since June, we have been holding a daily quiz on knowledge related to the safety management of special equipment; we welcome all members to participate actively. Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. Multiple-choice question: When testing stainless steel valves, the chloride ion content in water must not exceed ( ) ppm. A、 15 B、 20 C、 25 D、 40 Answer: C http://bbs.hcbbs.com/static/image/hrline/2.gif http://bbs.hcbbs.com/static/image/hrline/2.gif [Production and Management Section] Seeking moderators and technical discussants to join us. There is a campaign for the Safety Month in the Safety Technology Exchange forum, and we invite you to participate. Event plan: http://bbs.hcbbs.com/thread-1589973-1-1.html ---------Available prime advertising spots for HaiChuan events for sponsorship-------
During the testing of stainless steel valves, the chloride ion content in water must not exceed (A) ppm. A、 15 B、 20 C、 25 D、 40