Waterproof fire closed doors, watertight doors mine, pump house closed doors of St. Shandong coal production of various mining equipment, long-lasting quality, good service, reasonable prices. As long as you think, we'll do it. First, the mine closed waterproof fire door Features: 1, which comprises a frame and gate, gate contact on one side of the frame has a waterproof folder; within the framework set up with a retractable side groove, retractable hinged and storage tank There locking wrench, locking wrench open slot off prevention; 2, corresponding gate locking wrench holder has a solid position, the holder has a gate pivoted on the locking member; shutter locking member including a "U" shaped member, and a bolted on the "U" shaped piece of adjustment bolts; two, waterproof fire closed doors Model Specification Model Specification Figure No. 1), (D) MMB 1.4 × 1.8 B85-373.29 ??? 2), (D) MMB 1.6 × 1.8B85-373.30 3), (D) MMB 1.8 × 2.0 B85-373.31 4), (D) MMB 2.1 × 2.0 B85-373.32 ??? 5), (D ) MMB 2.1 × 2.0 B85-373.326 what kind of door you want, Shandong St. coal to produce for you what kind of door, as long as you say that, we will do that! Shandong coal mine holy mountain machinery flagship series: waterproof fire closed doors, watertight doors mine