ultrasonic calibration block 2 5 30mm

{"cid":"91195939","title":"7 Step Pipe Test Block\/ Circular Tube Stepped Block, 2.5-30mm 1018 Carbon Steel","imgUrl":"https:\/\/img.chinax.com\/nimg\/35\/6d\/5b3f1db3e6062241e0ab4041758b-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"TMTeck","Model Number":"step test blocks","Minimum Order Quantity":"1","Delivery Time":"4-6 work days","Payment Terms":"T\/T, Western Union,Paypal","Supply Ability":"50PCS\/Two weeks","Certification":"ASTM E797","Packaging Details":"Carton, 0.5kg","Product":"step test block","step thickness":"2.5mm\/5mm\/10mm\/15mm\/20mm\/25mm\/30mm","Place of Origin":"China","block type":"7 wedge step pipe block","country f origin":"china","brand":"tmteck","Material":"1018 steel,stainless steel"}}

{"cid":"90021558","title":"Stairs Calibration Block Ultrasonic Thickness Gauge for Temperature Environments 120 X 65 X 30mm 0-50C","imgUrl":"https:\/\/img.chinax.com\/nimg\/83\/7b\/1d0a8b81161c4eeeb508af036661-200x200-1.jpg","attrs":{"Brand Name":"HUATEC","Model Number":"TG-5700","Receiving Bandwidth":"1MHz\uff5e10MHz(-3dB)","Temperature Range":"0~50\u2103","Battery Indication":"Low Battery Indication","Operating Frequency":"3MHz","Memory":"400","Calibration Block":"Stairs Calibration Block","Accuracy":"\u00b1(0.5%+0.01mm)","Interface":"Mini-USB Interface For Communication"}}