Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
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Flameproofed black polyamide molding materials
Flameproofed chlorine-and bromine-free molding composition
Flameproofed molding composition
Halogen-free flameproofed thermoplastic molding materials based
Preparation of polyphenylene ethers in the presence of defoamer
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