http://pxbzggit2rmlozurovt7s7brcuntf4bijigbeqgzajhmvylr3vpm5dad.onion/index71f3.html?product_cat=rocket-launcher
The rocket launchers were constructed of wood, basketry, and bamboo tubes.[1] The launchers divided the rockets with frames meant to keep them separated, and the launchers were capable of firing multiple rockets at once. Textual evidence and illustrations of various early rocket launchers are found in the 1510 edition of the Wujing Zongyao translated by Needham and others at Princeton University.