① Corrugated pipe material for couplings
② Design configuration: single-layer, double-layer, multi-layer
③ Features: rated torque, misalignment compensation, vibration reduction, etc
④ Application
⑤ Customization options: special aperture, keyway or flange, etc
⑥ Quality Test Certificate
⑦ Advantages compared to peers
⑧ PDF for short video documents is acceptable