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PVC-U Fitting: ISO 1452-3:2009/TCVN 8491-3: 2011, BS EN 61386-21:2004+A11:2010 & IEC 61386-21:2002
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HDPE Fitting: TCVN 7305-2:2008/ISO 4427-2:2007
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PP-R Fitting: DIN 16962-5:2000-04
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TCCS: KTCL.TC-07, TCCS: KTCL.TC-03
CUSTOMER SERVICE
Customer service department always supports and advises customers 24/7.