retractable bleacher seating 300mm step height

{"cid":"91199093","title":"Rise Mounted Retractable Bleacher Seating 300mm Step Height","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/02\/09\/8e2bd1ff201e3d1720bef387b4c7-200x200-1.jpg","attrs":{"Price":"USD110-160\/pcs","Model Number":"ARH-T1751","Minimum Order Quantity":"100PCS","Delivery Time":"30 work days","Place of Origin":"China","Payment Terms":"T\/T, Western Union, L\/C","Supply Ability":"5000PCS per month","Packaging Details":"Carton, air bubble film","Material":"Q235 steel,Metal\uff0cHDPE","Color":"Customized Color","Application":"stadium,arena,indoor or outdoor,halls","Size":"Customized Size","Usage":"Indoor, School","Packing":"KD,Bubble film","Product name":"retractable stadium bleacher seating chairs,indoor gym tribune,used bleachers for sale plastic bleacher seats stadium bleacher seat,Stadium Seating","Key words":"bleacher \/ retractable bleacher \/ bleacher seats,Retractable Chair","Feature":"safe,folding,durable","Type":"manual\/ electric,Movable","Seat material":"HDPE"}}

{"cid":"91215781","title":"Silver Retractable Bleacher Seating System Customization Height Available","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/77\/de\/02b3d98ea94e56ace7b61386227f-200x200-1.jpg","attrs":{"Price":"US $45.0 - 90.0","Brand Name":"Flyon","Model Number":"Retractable Bleacher","Minimum Order Quantity":"100","Delivery Time":"30-45 Days","Place of Origin":"China","Certification":"EN 13200","Packaging Details":"Carton Package","Payment Terms":"T\/T","Supply Ability":"10000 PCS","Rows":"4-10","Capacity":"200-500 People","Height":"Customized","Aisle":"Optional","Size":"Customized","Installation":"Easy","Flooring":"Optional","Warranty":"5 Years"}}

{"cid":"91186715","title":"Tiered Retractable Bleacher Seating With Firm Frame Configuration","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/22\/08\/d439c3d2de1b14ceb3299a2e9710-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"Burgeon Sports","Minimum Order Quantity":"Negotiation","Certification":"EN","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Supply Ability":"3000 seats per month","Packaging Details":"Negotiation","Product Name":"Tiered Retractable Bleacher Seating","row depth":"650mm - 850mm","Row Riser Height":"250mm - 300mm","Operation":"manual or electric control","appearance":"warm and natural","application":"sport gyms"}}