precision measuring stop for roller blinds

{"cid":"91223416","title":"Aluminum Tube Cutting Saw Digital Measuring Stop Automatic Saw Measuring Stop for Roller Blind Cutting Aluminum Cutting Chop Saw Digital Stop","imgUrl":"https:\/\/img.chinax.com\/nimg\/0e\/92\/a95e07a31a9f17784eb59384fbd2-200x200-1.jpg","attrs":{"Price":"$500 - $12000 1 Set or Negotiable","Brand Name":"STEC","Model Number":"STMS","Delivery Time":"Be Pending","Certification":"CE","Place of Origin":"China Guangzhou","Payment Terms":"T\/T","Supply Ability":"1 Sets per 30 Days","Packaging Details":"Steel frame with poly wood cover.","Rate power":"200W","Voltage":"220v AC","Machine length":"3000mm","Adjustable speed":"0.2M~1M\/S","Optional length":"2800mm,3600mm,4000mm","Dimension":"3200MM*250MM*150MM","Packing":"3220MM*300MM*200MM","N.W":"50kg","G.W":"60kg"}}

{"cid":"91221137","title":"50-70mm Ratchet Stop Three Point Internal Micrometer Inside Diameter Measuring Tools","imgUrl":"https:\/\/img.chinax.com\/nimg\/ea\/0e\/c7dce1d842d1a7e28e8884cf2178-200x200-1.jpg","attrs":{"Brand Name":"KM","Model Number":"KM-2319-70","Delivery Time":"Within 15days","Certification":"ISO DIN GB RoHS","Place of Origin":"Shaanxi, China","Payment Terms":"T\/T, L\/C, D\/P, D\/A, Western Union, PayPal, MoneyGram","Supply Ability":"50000pieces\/Month","Packaging Details":"Aluminium Case 26*15*15cm\/Piece 3.50kg\/Piece","Warranty":"One Year","Measurement":"Metric\/Inch","Measurement Object":"Inside Diameter","Range":"50-70mm","Resolution":"0.001mm","Precision":"0.004mm","Form":"Large Measuring Range","Feature":"Ratchet Stop","Processing":"Fine Lapping","Package":"Aluminium Case"}}