21 Apr, 2024

and other projects. Resin, glass fiber reinforced plastic . The internal quality

Urban central heating network and other projects. Resin, glass fiber reinforced plastic. The internal quality of the weld shall not be lower than the quality requirements of the standard GB11345. Prolong the service life of steel pipe. External protection of steel pipe: to protect the insulation layer from groundwater erosion. It can produce better effect […]

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