a3zm4. impact-modified, stabilized injection molding grade for
components (housings) with high impact strength, heat distortion resistance and
low warpage. used for wheel covers.
a4h. high heat aging resistant, medium viscosity injection
moulding grade for highly stressed parts such as bearing cages, gear-wheels, coil formers***cable connectors.
a4. ultramid a4 is a medium viscosity, extrusion pa66 grade.
it conforms to fda requirements of 21 cfr 177.1500.
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