DN820×10—DN630×9高温型聚氨酯预制直埋保温管4111米;
DN529×9—DN377×8高温型聚氨酯预制直埋保温管5071.9米
DN820×10—DN630×9高温型聚氨酯预制直埋保温管4111米;
DN529×9—DN377×8高温型聚氨酯预制直埋保温管5071.9米
0报价2010-01-25
0报价2012-02-29
0报价2010-02-22
0报价2011-04-23
0报价2010-02-28
0报价2011-08-03
0报价2012-01-06
0报价2010-03-03