metal polyhedron prism 17 sided

{"cid":"91223678","title":"17 Sided Prism GCr15 Bearing Steel 17-20 mm Thickness","imgUrl":"https:\/\/img.ismap.com\/nimg\/41\/29\/97efcd37bb6c65d91956ad327c1d-200x200-1.jpg","attrs":{"Price":"3000~5000 USD","Brand Name":"SPR-ing","Minimum Order Quantity":"1 piece","Delivery Time":"1~3 weeks","Place of Origin":"Shenzhen","Payment Terms":"L\/C,T\/T","Supply Ability":"500\/month","Packaging Details":"Carton","Prism Thickness":"17-20 mm","Material Type":"GCr15 Bearing Steel","Rotating Center Aperture":"\u03c625 mm","Datum Plane Flatness Grade 0 (Grade II)":"\u2264 1 \u03bcm","Working Surface Roughness":"Ra \u2264 0.025 \u03bcm","Transparency":"Transparent","Material":"Glass","Working Surface Flatness Grade 0 (Grade II)":"\u2264 0.03 \u03bcm"}}

{"cid":"91199750","title":"Total Station 17.5mm Survey Mini Prism Pole 4 Rods Offset","imgUrl":"https:\/\/img.ismap.com\/nimg\/56\/8a\/29a477854956a6eb4dc4751dd7ec-200x200-1.jpg","attrs":{"Price":"25USD~30USD","Brand Name":"Leosurvey","Model Number":"ADSmini101-1","Minimum Order Quantity":"5 Pieces","Delivery Time":"3-5 work day","Certification":"ISO","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"500sets per month","Packaging Details":"Box and Carton","Model":"ADSmini101-1","Prism":"Copper Coated","Prism Constant":"17.5 mm","Prism Holder":"8\u2019 Round Bubble Level","Prism Holder Material":"Plastic","Centering Rod":"4 pcs","Rod Material":"Aluminium","Rod Length":"30cm","Used For":"Total Station","Catagory":"Total Station Accessories"}}