Hello? It is a Sewha Company. Our Sewha Company is a professional manufacturer of sponge rollers used in the manufacture of seasoned seaweed. We introduce Sehwa sponge as follows. 1. We manufacture and supply with more than 30 years of know-how. From 1993 to the present, it is the only manufacturer in Korea that has already been proven by leading companies and has been manufacturing and supplying for many years. 2. Manufactured and produced directly in Korea. It is not manufactured by outsourcing or OEM, but is manufactured and produced by skilled know-how technicians in Korea. 3. Supply with reasonable price. By manufacturing, producing, and distributing our own products, we supply them at a reasonable price. 4. Supply hygienic and safe products. In order to produce safe and hygienic products, we regularly retain test reports issued by the Korea Conformity Laboratories (KCL) and provide them to our customers.