产品规格
DN15-304-150LB,DN20-304-150LB,DN25-304-150LB,DN32-304-150LB,DN40-304-150LB,DN50-304-150LB,DN65-304-150LB,DN80-304-150LB,DN100-304-150LB,DN125-304-150LB,DN150-304-150LB,DN200-304-150LB,DN250-304-150LB,DN300-304-150LB,DN350-304-150LB,DN400-304-150LB,DN450-304-150LB,DN500-304-150LB