Current profile extrusion practice typically involves dry calibration tables, which can be 30 ft or more long, in front of a water immersiontank with form guides under low vacuum.
目前，型材挤出实践包括干标定台，它有30多英尺长，位于浸渍水箱的前部，结构导轨处于负压。
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Model BQJ-1 Semi-automatic Water-bath Test Tank for Aerosol Cans Capacity:Counted by each can immersion in water for two minutes.