86318648
Jun 24, 2014
Feb 7, 2017
Pumps for pumping molten metal made of refractory material, namely, circulation pumps, transfer pumps and multi-functional circulation and transfer pumps; pump components made of refractory material, namely, pump shafts, posts, bases, risers, shaft sleeves and impellers; and pump cartridges made of refractory material, namely, base and at least one of post, riser and shaft sleeve
Machinery