上工申贝：KSL品牌的缝制设备曾被多家商业航空公司采购，应用于航空部件的生产制造

Group 1 - The company has indicated that its ultrasonic welding machines can be used in the production of space suits [2] - The KSL brand sewing equipment has been purchased by several commercial airlines for the manufacturing of aviation components [2]