91香蕉国产线观看免费全集|毛片一区二区三区在线电影|国产一区二区三区免费看|欧美三级国产一区二区,老师的香蕉丝袜视频在线 ,亚洲 国产 日韩 av综合,国产精品无码素人福利不卡

China's Daqing Petrochemical shut its 330,000 tonne/year cracker, along with its derivative polyethylene plants, at Heilongjiang province on Tuesday for regular maintenance, a company source said. Included in the 15-day shutdown are the company's 65,000tonne/year low density polyethylene (LDPE) line, three 80,000 tonne/year high density polyethylene (HDPE) lines and 85,000tonne/year LLDPE line at the site, the source said.

Daqing Petrochemical's other cracker in Heilongjiang with a 270,000 tonne/year capacity is currently operating normally, the company source said.