PBT(polybutylene terephthalate)XW321(High-class) Instrinsic viscosity(dL/g): 0.980±0.015

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XW321(High-class)
Instrinsic viscosity(dL/g): 0.980±0.015
Melting point(℃):223.0±2.0
COOH content(mol/t):25.0±4.0
Color value(b):4.0±2.0
Color value(L):≥88
Moisture(%):≤0.40
Ash content(mg/kg):≤300
Hundred-grain weight(g):M±0.10
Different shape chip(%):≤0.3