what is non destructive testing pdf

{"cid":"91215778","title":"PR6424\/010-140 EPRO 16mm Eddy Current Sensor For Non-Destructive Testing","imgUrl":"https:\/\/img.chinax.com\/nimg\/ad\/40\/08fa69b149c339769c936ad7a845-200x200-1.jpg","attrs":{"Price":"$2200","Brand Name":"EPRO","Model Number":"PR6424\/010-140","Minimum Order Quantity":"1","Delivery Time":"5-7days","Place of Origin":"Germany","Payment Terms":"T\/T","Supply Ability":"999","Product Id":"PR6424\/010-140 EPRO 16mm Eddy Current Sensor","Brand":"EPRO","Series":"PR6424","Model number":"PR6424\/010-140","Warranty":"1 Year","Function":"Good","Condition":"New"}}

{"cid":"91137177","title":"Non - Destructive Static Universal Tensile Strength Tester Static Tensile Test","imgUrl":"https:\/\/img.chinax.com\/nimg\/8f\/b5\/3ad3325bfc88d82950aa9c86c2b4-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"Haida","Model Number":"HD-B604","Minimum Order Quantity":"1","Delivery Time":"15 Days After Order","Certification":"CE,,ISO","Place of Origin":"China","Payment Terms":"L\/C, T\/T, D\/A, D\/P, Western Union, MoneyGram","Supply Ability":"75 Piece \/ Pieces Per Month","Packaging Details":"Strong Wooden Case","Unit Switchover":"G, KG, N, LB","Display Device":"PC","Resolution":"1\/100,000","Accuracy":"\u00b10.5%","Max. Stroke":"1000mm (excluding fixture)","Test Speed":"20-300mm\/min (adjusted by the knob )","Motor":"AC Motor","Test area material":"SUS304 stainless steel","Elongation Accuracy":"0.001mm","Power":"1\u222e, AC220V, 50HZ","Weight":"Approx.150kg","Sensor":"Celtron load cell"}}