pcb pancake slip ring for robot arms

{"cid":"91117308","title":"IP65 IP66 Pancake Slip Ring Rotary Joint Aluminium Alloy 500RPM","imgUrl":"https:\/\/img.chinax.com\/nimg\/0d\/b8\/cdb5cef3398eca2afec642f0a989-200x200-1.jpg","attrs":{"Price":"US$99-300\/PIECE","Brand Name":"JARCH","Model Number":"JSR-PS","Minimum Order Quantity":"1 PCS","Delivery Time":"5-8 WORKING DAYS","Certification":"CE,FCC,ROHS","Place of Origin":"Guangdong,CN","Payment Terms":"T\/T,PAYPAL","Supply Ability":"1000 PICES\/ PER WEEK","Packaging Details":"Standard Export Package","ID":"3-1000mm","OD":"10-1500mm","Contact Material":"Precious Metal:Gold-Gold","Housing Material":"Aluminium Alloy","Protection Level":"IP54\/IP68","Max Speed":"250~500RPM","Circuits":"2~72","Current(A)":"2A\/5A\/15A\/20A\/30A"}}

{"cid":"91151948","title":"4 Circuits Separate Flat Slip Ring with Precious Metal Contact","imgUrl":"https:\/\/img.chinax.com\/nimg\/d0\/57\/e3e2e9b7899c48071575cc95e442-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"JINPAT","Model Number":"LPKS013-0402","Minimum Order Quantity":"1pcs","Delivery Time":"2 weeks ARO","Certification":"ISO9001.ISO14000.CE.UL.FCC.RoHS","Place of Origin":"China","Payment Terms":"TT\/CC\/Paypal","Supply Ability":"500 pieces\/week","Packaging Details":"Standard\/On Request","ID":"13 mm","Number of circuits":"4","Current rating":"2A per circuit","Design":"Separate PCB","Characteristics":"PCB"}}