"China is good mining machine 'coming! Pro, what are you waiting for, pick up the phone in your hands, please contact me, as long as the offer price break' 998! 998! 'I want you! I hope you can join my team We create a unique brand for you. mine flooding appeared with waterproof doors, waterproof closed doors, watertight doors mine in the coal mine when the maximum pressure is 98kp, Shandong St. coal mining machine production ahead with waterproof doors in the industry "customer first, quality first" is that we always adhere to the principle of a mining waterproof door main structure: a watertight doors closed doors for flat steel, Tic-Tac-ribs, ring beams welded and other groups; 2 frames for channel, beam composite frame; 3 tensioning device wedge slider wedge; 4 pivot bearing support using two mine closed doors with waterproof model figure number MMB1.4 * 1.8 B85-373 (1) MMB1. .6 * 1.8 B85-373 (2) MMB1.8 * 2.0 B85-373 (3) MMB2.1 * 2.0 B85-373 (4) above four models are GB model, our company can also be based on the actual needs of customers To order, you just need to purchase mine told me that you need to use a waterproof clear width of the door and the ceiling height can Various mine gate Shandong Machinery Co., Ltd., one of the main holy coal products, coal machine in Shandong St. coal mine machinery and equipment for decades, there is a wealth of production experience, advanced technology is the preferred manufacturer of mining equipment. We have high quality products, high service attitude, low-price products. Why not, your choice, no wrong.