国产一二三四区在线观看,亚洲日本一区二区三区高清在线,久久综合久久综合九色-欧美日韩高清视频一区二区三区_99国产精品尤物精品视频_久久国产精品视频观看

Tel:0086-21-51953300
EASY News

In 2005, melamine modified phenolic injection molding plastic EA7501J was successfully developed and

time:2018-04-10 Browse number (14169)
  

In 2005, melamine modified phenolic injection molding plastic EA7501J was successfully developed and realized industrialization. The product has excellent tracking resistance, arc resistance, and flame resistance, and has been authorized by the State Intellectual Property Office as an invention patent.

展開