Internal and external injection molded steel plastic composite pipe: composed of a plastic layer, an adhesive layer, a steel pipe layer, an adhesive layer, and a plastic layer. The adhesive layer is located between the plastic layer and the steel pipe layer, using a unique process and technology to organically integrate the plastic and steel pipe, making them seamlessly connected. Its biggest feature is to overcome the weakness of steel pipes being resistant to pressure and corrosion, and plastic pipes being resistant to corrosion and pressure. Compared with various steel pipes, plastic pipes, aluminum-plastic composite pipes, stainless steel pipes, copper pipes, etc., it has obvious advantages in terms of hygiene indicators, physical and chemical properties, and cost. It has the characteristics of corrosion resistance, aging resistance, rust free, tasteless, non-toxic, smooth inner wall, high temperature resistance, high pressure resistance, light weight, thermal insulation, etc. It solves the problems and losses of pipeline corrosion and aging in various industries, and is the most ideal pipeline for water supply and drainage engineering, gas supply engineering, chemical industry, etc.

The steel plastic composite pipe has passed the relevant national industry license certification, complies with the engineering construction standards of the China Engineering Construction Standardization Association, and meets the requirements of the national "Measures for the Supervision and Management of Drinking Water Quality". Its performance indicators are:

Nominal diameter: 6-315mm

Work pressure: -0.08~10Mpa

Corrosion resistance: resistant to 50% sodium hydroxide, 38% concentrated hydrochloric acid, and 50% sulfuric acid

Weight: Half of galvanized pipe

Leakage: Water pressure of 3.2Mpa, no leakage

Flow resistance: half of the metal tube