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Polybutylene Terephthalate Loose Tube Compound/PBT Resin for Optical Fiber Cable PBT Pellets, Find Details and Price about PBT Pellets PBT Resin from Polybutylene Terephthalate Loose Tube Compound/PBT Resin for Optical Fiber Cable PBT Pellets - Shanghang Xinchanglong Industrial Co., Ltd