Hengshui City Value Optical Engineering Rubber Co., the predecessor of Taocheng scale light Rubber Products Factory, the company specializes in the production of a bridge with a prestressed corrugated plastic pipe, prestressed corrugated metal pipe, ultrasonic test tube (Acoustic Pipe), embedded bolt corrugated tube, pipe, flat tube, rubber ...... specification is complete quality assurance! The company has passed ISO9001: 2000 international quality system certification, the products are widely used in bridges, roads, concrete works! (1) bridge prestressed corrugated metal pipe round metal bellows (round metal bellows specification) ID OD ID OD ID OD ID OD 3,542,404,745,525,057 5,562,606,765,727,077 75 8,280,878,592,909,795,102 100 107,105,112,110,117 115,122,120,127,125 132,130,137,135,142 mechanical properties of the tube 140 147,145,152,150,157 circular metal bellows (JG / T3013-94) project quality standard anti- concentrated load N (KGF) 89 (100) anti-deformation greater than 0.20 uniform Loads (KGF) P = ΠD @ 0.1D vertical variable is not leaking after more than a test tube with irrigation mud slurry does not leak axial tensile N (KGF ) 2450 (250) Bellows without damaging the anti-bending test R = no leakage of plasma 300 (2) flat-type metal bellows series of flat metal bellows inner cross-sectional dimension (according to user requirements to develop) a 19 22 b 60 70 90 65 7490 flat metal bellows mechanical properties of project quality standard anti-concentrated load N (KGF) 490 (50) anti-deformation greater than 0.2D uniform Loads (KGF) P = 2 (2 + b) is not a variable vertical 0.2D leak Tested with more than mud slurry does not leak irrigation axial tensile N (KGF) 980 (100) does not damage the metal bellows bellows material: (. GB4175) K215-A galvanized steel armor (GB175.2) corrugated metal Tube Appearance: Bellows clean appearance, no holes, seams, no cracking, no trip