Saerim Tech. Co., Ltd., based in Korea, is specialized in manufacturing tire building bladders for car, truck & bus and off-the-road tires, rubber products. In addition to the tire building bladders, Saerim has been developing tire machinery equipment and test equipment and industrial knives over for 20 years. Saerim has a sister company (Yonglin Bladder) in Qingdao, China to supply the tire building bladders to the tire manufacturers. We have been working with major tire manufacturing companies in research and development for tire manufacturing equipment.