SH/T3611一2012目次前言······················································...
res2s.160P72备案号:]1533-2013中华人民共和国石油化工行业标准SH/T3611-2012酸性环境可燃流体输送管道焊接规程Weldingspecificationofcom...
SHT 3611-2012 酸性环境可燃流体输送管道焊接规程.pdf