Long-term supply HG21515 atmospheric manhole, the atmospheric pressure Kong preferred Changzhou St. Tang ,0317 -6266527 specializing in the production of rectangular manhole rectangular insulation manhole, rectangular manhole prices, rectangular manhole rectangular insulation manhole, 500 * 600 rectangle Kong, 500 * 600 rectangle insulation holes, as well as a variety of standard specifications of the manhole, manhole cover, stainless steel manhole, oval hole, round manhole insulation manhole, rectangular hole, the pressure hole another circular insulating hole a variety of standard specifications, oval Kong sale, stainless steel manhole cover material 304,316,316 L, 321, etc., quality and cheap, welcome to come call to discuss (0317-5305131), strict production management in accordance with the requirements of the ISO9001 international quality system, and has advanced machining and testing equipment and high-tech, high-quality staff to ensure a high level, professional production of various materials of stainless steel manhole, oval hole, round manhole insulation manhole, rectangular hole, the pressure manhole, manhole types of atmospheric type, pressure type, hand wheel, rectangular, oval, oval mirrors, hand hole, square, etc.; the material specifications may production according to customer choice. St. Tang pipeline can also be based on the processing requirements of customers to map, sample processing non-standard manholes, users can also manufacture non-standard manhole, by the recognition and praise of the old customers. 
 HG21515-2005 at atmospheric pressure manhole, HG21516-2005 rotating flat Flat welding flange hole, HG21517-2005 rotary cover with cervical flat welding flange hole, HG21518-2005 rotary cap with a neck welded flange manhole HG21519-2005 vertical hanging cover plate welded flange, holes, HG21520-2005 vertical hanging cover with a neck flat welding flange holes, HG21521-2005 vertical hanging cap weld neck flange manhole, HG21522-2005 level hanging The cover plate welded flange manhole HG21523-2005 level hanging cover with a neck welded flange manhole. 
 The DD5101 pulverized coal purge holes 
 DD5201 flat wall through the coal hole 
 The DD5202 circular wall through the coal hole 
 The DD5301 Ф500 circular welded manhole 
 The DD5302 Ф500 round thermal manhole 
 DD5303 500 × 600 rectangle welded manhole 
 DD5304 500 × 600 rectangle insulation manhole 
 DD5305 300 × 400 oval manhole 
 DD5401 100 × 150 oval hand hole 
 DD5501 300 × 300 flue ash hole 

 Long-term supply HG21515 atmospheric manholes, the atmospheric manhole preferred the Changzhou St. Tang Sales Hotline 0317 -5129597