【Daily Question】Advanced Processing 20160912 Fill-in-the-blank: Ordinary pneumatic diaphragm control valve. . .

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To boost popularity and enhance technical exchanges among Haiyou users, 【One Question per Day】 is hereby launched. Participation earns 4 points of wealth! 10 wealth points as a reward for correct answers or in-depth discussions! :Lol fill-in-the-blank question: A standard pneumatic diaphragm control valve consists of a driving mechanism and a control mechanism, and is available in ( ) and ( ) forms. A standard pneumatic diaphragm control valve consists of a driving mechanism and a control mechanism, and is available in two types: (air-open) and (air-close). ======================================= ☛【Kaichuan Voting】A brilliant blue sky is here – choose the one you think is the most beautiful! http://bbs.hcbbs.com/thread-1613972-1-1.html (Source: Haichuan Chemical Industry Forum) ☛ Announcement on the selection and rewards for outstanding moderators, technicians, and star members from January to July 2016 in the “Petroleum and Chemicals Section” http://bbs.hcbbs.com/thread-1608031-1-1.html (Source: Haichuan Chemical Industry Forum) ☛ The second round of evaluations for outstanding management members at Haichuan – taking place in August and September; the top prize is a Xiaomi tablet http://bbs.hcbbs.com/thread-1609580-1-1.html (Source: Haichuan Chemical Industry Forum)