Changzhou St. Tang Pipe Manufacturing Co., Ltd. mainly produces 0317-5305131.13393272821: 500 * 600 rectangle insulation manhole φ500 circular manhole DN300 round blast doors, beveled blast doors, round insulation manhole, oval hole, horizontal ceiling cover manholes, flue ash hole, rectangular hole, rectangular insulation manhole, manhole hanging cover, coal purge hole poke round the wall of pore, the circular welded manhole round insulation manhole, rectangular hole, rectangular thermal manhole, flue ash Kong, sewage hole cleaning hole, atmospheric holes, revolving flat type flat welding flange hole, rotary cover with carotid flat welding flange hole, the rotary cover weld neck flange manhole, vertical hanging cover plate welded flange manhole vertical hanging cover with carotid flat welding flange manhole, vertical hanging cap weld neck flange manhole cover type, level hanging Flat welding flange hole, horizontal hanging cover plate weld neck flange manhole, level with carotid flat welding flange manhole cover hanging type, oval-shaped rotary cover Quick-open hole, and slewing ledge quick open people Kong; 
 , Atmospheric hand hole plate welded flange hand hole, hand hole with carotid flat welding flange, weld neck flange hand hole, the rotary cover weld neck flange hand hole, atmospheric fast open hand holes , rotary cover quick open hand hole. 
 3, audition pipeline, sewage hole, ash hole, cleaning the hole. 
 Can also produce 
 , Pipe fittings series, (the 74DD smoke pulverized coal series of piping components, 02S403, 02S404 national building standards, design of steel pipe, GD87 Power Plant Water Pipe parts and components, GD2000 pipeline miscellaneous accessories), including a variety of manhole, throttle , explosion-proof doors, valve actuators, displacement indicator, wear off the spool adjustable shrinkage, Blender separator, waterproof casing, soft rubber joints, expansion joints, water pumps, import filters, orifice plates, bellows compensator, creeping inflation measurement points, flow measurement devices, flow indicator, drainage funnel, the hydrophobic collector pipeline endoscopic Transmission Joint absorbent speaker tube. Second, pipe fittings series, including high school low pressure pipe fittings (elbow, flange, tee, reducer, elbow, head to take over, Forged Tees, intubation), smoke, pulverized coal pipeline : including wear-resistant ceramic pipe lined with plastic anti-corrosion pipe pipeline. 4, pipe supports and hangers 
 . Changzhou Sheng Tang pipe wholesale price supply high-quality low-cost rectangular insulation manhole