In order to further improve the luminous intensity of illuminating flares. the technique of 3D printing of the combustible shell of the illuminating flare using DLP light-curing was proposed. and the combustion spectrum of the combustible shell was made consistent with the combustion spectrum of the illuminating agent. A combustible illuminating candle shell slurry formulation was des... https://emporiumsmokeshopstles.shop/product-category/wood-pipe/