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PEI Ultem 2100R (Ultem 2100R-1000/Ultem 2100R-7301) Natural/Black Polyetherimide Resin, Find Details and Price about Ultem 2100r Ultem 2100r-1000 from PEI Ultem 2100R (Ultem 2100R-1000/Ultem 2100R-7301) Natural/Black Polyetherimide Resin - Zhejiang Zhongfu Industrial Limited