dustcoat

of lens of the root of fangfeng of naval ships of compound product development uses proper motion to develop the refus of dustcoat of submarine cotton coverall is oily function.

采自行研制拒油剂配方加强潜艇棉工作拒油功能。结果:这些非凡装所材料各项性能指标均达到防护应标准。