天泰E81T1-K2焊丝TWE－811Ni1E91T1-Ni1E551T1-Ni1590MP***高强钢用。TWE-811Ni2E81T1-Ni2E551T1-Ni2-40℃590MP***低温钢用。TWE-911Ni2E91T1-Ni2E601T1-Ni2-40℃620MP***低温钢用。TWE-81K2E81T1-K2E551T1-K2-60℃低温钢用。)