问雨刮片是如何制作的

The YdQIfEYjxDU xxxTube video display in English, but I can not put linksmaking windshield wipers based on the video location of which i tried to explain before:natural or synthetic rubber is handled by rolling machine to remove air bubbles.carbon black is addedmixer mixes the two ingredientsanother rolling machine turns it to thin black rubber mat.sheet steel is formed by metal press to hold the rubber blades in formmetal parts are painted with electrostatic voltage of 80KV.arms are set to drierextruder will make continuous band with profile of two blades, which are later cut in 2extruded blade is passed trough hot (liquid) sulfur to harden the rubber.the band is cut to required lengths.spinning quilliotine (rolling sharp cutter) cuts the blades to halves.samples are taken for quality controlif quality is perfect, blades are assembled.ready wipers are quality controlled by both cameras and humans.