... 30 to 40 percent, the super absorbing, heat loss less, warming faster. Efficient tube, the super absorbing, ... not more than 1, the whole pipe, not more than 5, the stones shall not be a crack around, more than 1mm stone does not ... should be no more than 50Supporting supporting thing should not obvious place decently, don't angry, loosened.Sealing mouthsleek, no ankylosis, no glass accumulation, end ...