BOBAI 36kw high efficient 300C hot thermal oil heater for heat shoe making glue Packages 1. Multiple Packing : Proved by tests of thecompression resistance , throwing . And highly secured 2. Plywood Case Packing : High resistance of burststrength , ring crush strength and tearing strength 3, Wooden Frame Packing : Damp-proved and hight_ resistance of burst strength and ring crush strength