Complete quality control conform to ISO9001 system in each manufacture detail to ensure DS SML cast iron pipe coupling quality to Enropean standard EN877, DIN19522.
Stainless steel SUS304, SUS316L
BOLT AND SCREW
Material: Galvanized steel , Stainless steel
Screw size: M6 , M8
Torque: DN50-80: 6-8Nm, DN100-200: 10-12Nm
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