可燃冰板块多股高开，德石股份逼近20C%涨停

Group 1 - The core viewpoint of the news is that the combustible ice sector saw significant stock price increases, with multiple companies experiencing high openings and approaching their daily limit ups [1] Group 2 - De Shi Co. approached a 20% limit up in stock price [1] - Shen Kai Co. and Petrochemical Machinery also reached their limit up through competitive bidding [1] - Other companies such as China Oilfield Services and Qian Neng Heng Xin followed the upward trend [1]