钢制燃气管道焊缝位置应满足:有加固环的卷管,加固环的对接焊缝应与管子纵向焊缝错开,其间距不应小于( ),加固环距管子的环焊缝不应小于( )。
A.A.50mm, 30mm B.B.50mm, 50mm C.C.100mm,30mm D.D.100mm,50mm正确答案D
钢制燃气管道焊缝位置应满足:有加固环的卷管,加固环的对接焊缝应与管子纵向焊缝错开,其间距不应小于( ),加固环距管子的环焊缝不应小于( )。
A.A.50mm, 30mm B.B.50mm, 50mm C.C.100mm,30mm D.D.100mm,50mm正确答案D