1.ATUM高收缩比双层热缩管ATUM-3/1-0-STK RAYCHEMATUM-6/2-0-SPRAYCHEMATUM-4/1-0-SP RAYCHEMATUM-8/2-0-STK RAYCHEMATUM-12/3-0-STK RAYCHEMATUM-16/4-0-STKRAYCHEMATUM-24/6-0-STK RAYCHEMATUM-32/8-0-STK RAYCHE