If you do not see any puff, increase the heat and/or dwell time in the conveyor oven.
If you do not see any puff, increase the heat and/or dwell time in the conveyor oven.
如果没有出现发泡效果，增加热度和/或者网带炉的停留时间。
If you do not see any puff, increase the heat and/or dwell time in the conveyor oven.
如果没有出现发泡效果，增加热度和/或者网带炉的停留时间。