The main idea is to combine the frame and module skillfully and simply to achieve the function of sealing. The device is reliable in operation, flexible in matching, easy to install, less tolerance, convenient in design and easy to disassemble. The standard framework established by the company according to its own experience ensures the optimum size of the structural strength and installation module, which has become the industry standard. The modules are all made of a kind of lycron composite polymer, which is fire-proof, explosion-proof, aging-proof, radiation-proof and pest-proof. Various types of modules can flexibly match the frame to meet the requirements of various cables and pipelines (including installed, to be installed and installed cables and pipelines). It also develops special products adapted to various special environments. The frame used has the following characteristics: strong enough, multiple welding, robotic welding, small tolerance, smooth inner surface without residual welding debris. The modules used have the following characteristics: clear marking, automatic extinguishing material, self-lubrication, long-term use, halogen-free corrosive gas, smoke-free generation, insect pest prevention and bite resistance, small tolerance, no displacement, minimum waste generation. It is worth noting that in case of fire, our rubber filling module will expand by about 15%, so it can compensate for the burned or melted cable insulation. The cable and pipeline crossing device is a skillful and simple combination of frame and module to achieve the function of sealing. The device is reliable in operation, flexible in matching, easy to install, less tolerance, convenient in design and easy to disassemble.