Joke Collection Website - Mood Talk - Who can tell me how many meters a trunking is? Does anyone understand?

Who can tell me how many meters a trunking is? Does anyone understand?

PVC trunking has complete specifications, with a general length of 2m. Product material: low-halogen and high-toughness hard PVC material is adopted, which is environmentally friendly and pollution-free, and does not contain toxic substances such as lead. Product certification: UL/CUL:E306674? European CE? European environmental protection RoHS, REACH, railway flame retardant and low smoke. Fire rating: UL94V-0, low smoke and low halogen, nonflammable in case of fire, and excellent fire resistance and insulation performance.