3 4 seconds lowering time hydraulic rising bollard

{"cid":"91148076","title":"Full-Automatic Hydraulic Rising Bollard with 3-4 Seconds Lowering Time 5 Million Times Service Life and K4\/K8\/K12 Anti-Collision Levels","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/6c\/a1\/9d4e184119b98ae9ddee4162e06d-200x200-1.jpg","attrs":{"Price":"US$399~US$499","Brand Name":"SINOMATIC","Model Number":"SN-BO-219","Minimum Order Quantity":"Sample order accepted","Delivery Time":"5-7 working days after payment received","Certification":"CE\/ ISO","Place of Origin":"Shenzhen, China.","Payment Terms":"T\/T,Western Union,,credit card\/Cash\/Alipay,L\/C,D\/A,D\/P","Supply Ability":"1,000 pcs per month","Packaging Details":"Carton\/Plywood box\/Pallet","Lowering Time":"3-4 seconds","Thickness":"6mm(default), 8mm,10mm, 12mm, 20mm","Control Box Weight":"15kg","Inner Tube Diameter":"168\/219\/273\/324mm (D)","Bollard Height":"600\/800\/1000mm","Working Temperature":"-40\u00b0C to 70\u00b0C","Usage":"Road Traffic Safety","Embedded Cylinder Depth":"800-1300mm(it depends)","Moving Body Diamet":"168\/219\/273\/324mm","Protection Level":"IP68","Net Weight":"60kg~100kg","Feature":"Water Resistant"}}