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#leitor (2023-10-24 15:40:32)
老师，课堂上没有讲到的，老师上课没有讲明白的，老师讲了你没有听明白的，和上课走神，你没有听到的，在课堂直播里都有，不是家教胜似家教动漫演示，让学习更快乐地掌握知识，重点难点疑点实时视频讲解，中学教材同步解读一本会说话的书
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UPVC Floor Flange Pipe Fitting Socket Coupling Connectors
UPVC Pipe Fitting OD Straight Coupling Joint Connector
UPVC Pipe Fitting DN Socket Coupling Straight Joint Connector
UPVC Pipe Fitting DN Socket Coupling Straight Joint Connectors
UPVC Pipe Fitting Elbow Schedule 80 1" Socket, 2 Pack 45 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1" Socket, 2 Pack 90 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1" Socket, 3 Pack 45 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1" Socket, 3 Pack 90 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1" Socket, 45 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1" Socket, 90 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1-1/2" Socket, 2 Pack 45 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1-1/2" Socket, 2 Pack 90 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1-1/2" Socket, 3 Pack 45 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1-1/2" Socket, 3 Pack 90 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1-1/2" Socket, 45 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1-1/4" Socket, 2 Pack 45 Degree Adapter Connector, Gray
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