●When making doors and windows according to the blanking size on the design order, the depth of v-groove on the small profile surface is half of the width of the welded tin small surface minus the welding allowance.
●After cutting, the first inspection three inspection, and sampling inspection. All components must meet the following technical requirements after cutting by plastic steel door and window equipment:
①After cutting v groove angle tolerance 0.3 °.
②After cutting v groove angle tolerance is 0.5mm.
③Component cutting surface and profile on both sides of the vertical degree is guaranteed, to be welded surface clean, no water, oil, debris and other sundries.