1Step(Dongguan) Packing Material Co.,Ltd is specialized in manufacturing various humidity indicator cards,desiccant agents and relative packing materials.Our products feature damp resistance,rust resistance,mold resistance and others.Our products have passed the SGS certification and complied with the RoHs,DMF,MSDS.We have always offered the excellent services to the customers.BYD,SOMACIS GRAPHIC,SAMSUN and other first-grade electronic companies are in our customer list.1Step gain more and more market in the world and will invest more capital and energy in the product exploitation,the environmental,the marketing and the customers'services.