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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Light-diffusing polycarbonate resin compositions containing poly
Thermoplastic composition with a granular surface appearance lik
Thermoplastic composition with a granular surface appearance lik
Thermoplastic composition with a granular surface appearance lik
Thermoplastic compositon with a granular surface appearance like
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