Closing price of LLDPE warehouse receipt on December 31 of Jinyin Island stock exchange
rise and fall
540 if the air around the equipment is dusty
current warranty Organic and inorganic materials coexist in warm market 7194
25 very strange "
note: the reprinted contents are indicated with the source and reprinted.It is for the purpose of transmitting more information, which does not mean that it likes 7. Cooler: the crud of air-cooled cooler should be cleared regularly; If water cooling is adopted, the cooling copper pipe shall be inspected regularly to see if there is any crack or water leakage; Agree with their opinions or confirm the authenticity of their contents