General grill tube is composed of a plurality of holes, generally common with hole grille tube, four-hole grid tube, five-hole grid tube, seven-hole grille tube, abalone grid tube. We produce perforated grille communications buried pipe is a new cable sheathing tube, the tube is a jacket with a child as a whole, a beautiful shape extruded PVC plastic produced using high compressive strength, light weight, life long, smooth wall, small friction, easy construction, resistant to external influences protect optical cable tube function. Effective space, easy to wear cable guide, isolation and protection products with improved efficiency, cost savings, ease of installation, secure other obvious advantages. Widely used in fiber-optic communications, cable, power cable multimedia transmission and other infrastructure projects, is a new and practical optoelectronic communication facilities ancillary products. ] A high-strength tube grille with buried under the carriageway, without adding a protective layer of soil mixed suspect, can speed cable construction progress. 2, grill flexible tube that can withstand the weight of the outside world and foundation damage caused by subsidence. 3, grille possession insulation, no galvanic corrosion, suitable for single-core cable laying; there can take advantage of corrosion resistance for use in high-temperature saline soil. 4, grill possession of fire-retardant, good heat resistance, high temperature of 130 degrees in the long-term use without deformation. 5, grill pipe wall is smooth, do not scratch the cable. 6, with plug-type connection, easy installation and connection. 7, grill pipe body light weight, simple and convenient installation and construction, one person can be lifted, the two will be in place to implement the installation, can greatly shorten the construction period, lower installation cost. While avoiding road excavation exposed a long time, the impact of urban traffic order problems. 8, wide grille tube range: applicable for laying underground cable protection pipes, cable bridge across the river is also used in high demand applications. Can be composed of multi-multi-multi-column mode duct exhaust pipe. Grill tube construction field: (1) urban power grid construction and renovation project. (2) municipal renovation project. (3) civil airport construction projects. (4) industrial parks, residential construction. (5) Transportation bridge construction.