dn500 manhole cover with design temperature

{"cid":"91224153","title":"Carbon Steel One-button Quick Opening Manhole Cover with Design Temperature -20- 140 and Modified Rubber Seal Material","imgUrl":"https:\/\/img.ismap.com\/nimg\/25\/02\/0ffb00f94cd277abd4bb332ced2d-200x200-1.jpg","attrs":{"Price":"$150\/pieces 1-9 pieces","Brand Name":"CHUANCHU","Model Number":"HT_YJSRKG_520","Minimum Order Quantity":"1","Delivery Time":"7-30 days","pump":"\/","Material":"Carbon Steel","Power":"\/","Accuracy":"\/","Nozzle":"\/","ambient temperature":"\/","Place of Origin":"Hubei, China","Working Voltage":"\\","Flow Rate":"\\","Warranty":"1 Year","Certificate":"\\","Type":"manhole cover","Nominal diameter":"DN450","Nominal pressure":"0.3MPa","Main Material":"Carbon steel","Design Temperature":"-20~+140","Weight":"35.5kg","Seal Material":"Modified rubber","Applicable Media":"Granular material,bulk cement,coal ash","Use":"Loading port","Application":"cover","Packaging Details":"Wooden box","Payment Terms":"T\/T","Supply Ability":"Meet large-scale orders"}}

{"cid":"91223410","title":"EN124 Certified Composite Manhole Cover with Locking Key -40\u00baC to 150\u00baC","imgUrl":"https:\/\/img.ismap.com\/nimg\/67\/82\/aa9809f09c937a226239862a8a12-200x200-1.jpg","attrs":{"Price":"Dollar\/5-300\/Set","Brand Name":"Elite","Model Number":"Elite-SS655","Minimum Order Quantity":"50sets","Delivery Time":"20-30days","Certification":"En124\/ISO","Place of Origin":"Shandong","Payment Terms":"T\/T","Supply Ability":"2000000\/Set\/Year","Packaging Details":"Pallet + Waterproof stretch film","Certifications":"EN124, ISO9001, SGS, CE","Logo":"Customized","Material":"Composite","Durability":"Long-lasting","Fire Resistant":"Yes","Accessories":"Lifting Handle, Locking Key"}}

{"cid":"91217453","title":"Temperature Range -40\u00b0F To 180\u00b0F Rubber Discharge Hose 500 Psi Synthetic For Marine Dredging","imgUrl":"https:\/\/img.ismap.com\/nimg\/0a\/d3\/26f178f4e361fd5f469f79bed090-200x200-1.jpg","attrs":{"Price":"20 USD\/unit","Brand Name":"Jiubei","Model Number":"DN500","Minimum Order Quantity":"1unit","Delivery Time":"7DAYS","Place of Origin":"China","Certification":"ISO","Packaging Details":"STANDARD SEA WORTHY PACKAGING","Payment Terms":"tt","Supply Ability":"100units per month","Maximum Pressure":"500 Psi","Reinforcement":"High Tensile Synthetic Yarn","Length":"50 Ft","Package Type":"Carton","Material":"Synthetic Rubber","Package Quantity":"1","Cover":"Synthetic Rubber","Color":"Black"}}