Mechanical Properties: After tensile treatment, the compressive strength of the steel pipe substrate reaches over 20MPa.
Environmental Characteristics: Production energy consumption is reduced by 40% (compared to casting processes), and waste products can be 100% recycled.
Construction Ease: The connecting screw mechanism (including reverse threaded pipe) supports a pipe section spacing adjustment range of ±15mm, increasing installation efficiency by 3 times in actual underground mining tests.
