... : 1500mm/1800mm/2100mm3, quantity of vacuum tube: 15/18/20/24/30/36/42/504, type of the vacuum tube ... of frame: 38 to 45 degree17, capacity optional: 100L,150L,200L,240L,300L18, working temperature: 90 degree19, cold resistance: -38 ... quantity ModelTube specificationCapacity20'GP40'GP40'HQJNHP-15φ58mm*1800mm*15150L4285107JNHP-20φ58mm*1800mm*20200L367291JNHP-25φ58mm*1800mm*25250L306177JNHP-30φ58mm* ...