Shaped like a T, it has a straight-through section and a vertical section. The inner bends of the trough rack are designed with chamfered or arc structures to reduce the bending angle of the cable and protect the cable; some structures such as reinforcing ribs, buffer devices or arc reinforcing plates are used to enhance compressive capacity and prevent deformation, etc.                                                                                                                                                                                                  Materials and surface treatment: It is usually made of steel, and the surface can be treated with anti-corrosion treatments such as galvanizing. If "spraying" is mentioned, it may refer to applying a spray coating on the basis of galvanizing to further improve anti-corrosion, wear resistance and other properties, but this is not a common conventional process and has no connection with Pentel.

- Model specifications: There are different size specifications, such as those indicated by height and width, like PCT50x100 - TEE (PCT stands for tray-type cable tray, TEE stands for horizontal tee, 50x100 means 50mm height x 100mm width) and various other specifications.

- Functions and applications: It is used in cable tray systems to realize the gathering and direction change of cables, suitable for laying power cables, control cables and other cables, which can reduce cable wear and ensure safe operation of cables.