Square Technology Group Co., Ltd. (stock code: 603339), started in 1986, owns 6 wholly-owned subsidiaries and 1 research institute. Our company is specialized in manufacturing cold chain deep processing equipment. We are the largest freezer manufacturer around the world. We offer spiral freezer, plate freezer, fluidized bed freezer, impingement tunnel freezer, refrigeration system, continuous proofer, continuous oven, carton freezer, insulation panel for cold storage and so on.