Tandem shaped charge is one of the hotspots in the research of antiarmor ammunition at present. but because of the shortcoming that the front-stage jet penetrates and detonates ERA (Explosive Reactive Armor). then it will affect the rear-stage jet to penetrate the main armor. Our research team proposes that the front charge of the tandem shaped charge can be designed as a low-density ... https://danddcollectiblers.shop/product-category/switch-mat/