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concrete pipe mould bottom casted rings

2025-04-13 introduction 2260
RRJ750
Chemical Hardening Sand
Thermal Gravity Casting
no sand core
concrete pipe mould part
CNC Machining
Steel
Polishing
Ra3.2
customer
flexible tongue* groove flush joint
DN 450mm
flexible flush joint
tongue&groove
OEM ODM CST
Package
300mm to 1800mm
Hebei China
84802000
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