Technical Requirements for Heat Preservation of Spiral Steel PipesAfter the heat insulation treatment of spiral steel pipes( SSAW steel pipe ), people are accustomed to call them heat insulation steel pipes.The insulation layer of heat insulation steel pipes is filled with rigid polyurethane foam. The quality requirements for the insulation layer of spiral steel p ...
lvy lee - Permanent Steel Manufacturing Co.,Ltd
Posted 8 months agoPress
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