PBT(polybutylene terephthalate) BM433(High-class) Instrinsic viscosity(dL/g): 1.380±0.030

BM433(High-class)
Instrinsic viscosity(dL/g): 1.380±0.030
Melting point(℃):223.0±2.0
COOH content(mol/t): ≤27
Color value(b):4.5±2.0
Color value(L):≥90
Moisture(%):≤0.40
Ash content(mg/kg):≤300
Hundred-grain weight(g):M±0.10
Powder(mg/kg): ≤200
Different shape chip(%):≤0.3