[introduction] “ safety work, safe work, ” workers often hung in the mouth of a word. This paper continues to push the factory safety signs (two), hoping to give you the help of security.S..

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[introduction] “ safety work, safe work, ” workers often hung in the mouth of a word. This paper push the factory safety signs (a), hoping to give you the help of security.Sign typeProhibi..

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[introduction] the tower equipment factory has been the main tower, although the size of the equipment is large, for some processes (such as distillation) energy consumption is relatively high, but be..

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[introduction] if you see in a variety of flow chart of a blank, don't know all the unknown of odd shape with finger, then this will bring you a sign to learn, what they really mean, what are the broa..

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