... sliding window,casement window/door, fixed window , single glazing window/door, double glazing window, top huge/bottom huge window, tilt and turn window MOQ ... ±0.379.9~80.1Pass2.2Widthmm50±0.549.8~50.2Pass2.3Straightness deviationmm≤10.6Pass3.1Dimension changeafter ... stabilizer ,lubricant,processing improver, aging agent and colorant. 2.Cone screw tube extrusion: The blended powders are automatically ...