What is the role and harm of car shower pipe?

1) Spiral trachea open-air stacking, below must have wooden mat or strip stone, the stacker surface needs to be slightly inclined, in order to facilitate the drainage, and pay attention to the material placement straightness, prevent the bending deformation.2) The principle of the spiral pipe pile c

Nylon, commonly known as polyamide, abbreviated as PA, is a generic term for thermoplastic resins containing repeating amide groups [NHCO] in the molecular backbone. Nylon and pvc tubes are plastics of two different materials, so the main difference is in performance and use:Nylon tube refers to a h

PVC products can generally be divided into hard and soft two categories. No plasticizer is added in the processing of hard products, while a large number of plasticizers are added in the processing of soft products. PVC was originally a rigid plastic with a glass transition temperature of 80-85 C. T