https://dl.lwltv.com/subjects/440004880808083455 Kohei’s company holds the patent of an engine valve system required to develop a space rocket. Will he finally be part of a successful rocket launch? https://dl.lwltv.com/subjects/440004880808083455 https://img.lwltv.com/y6wQI5H-0F2UVWmuBGa0r_aHDyM=/144x0/images/aLvsNnQif7Cuggp0Z395Zg1jbET.jpg 144 zh-cn 180 LWLDL RSS Generator 1.0