Polyurethane Plastic core polyurethane casters

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{"cid":"109977","pid":"21337300","pimg_url":"\/\/img1.b2bforus.com\/85\/d0\/6ab0bb5d4396\/product\/71131365_s-w400xh400.jpg","name":"Other Source Factory Products 200X50 mm Foamed Polyurethane Wheelchair Caster Wheel","attrs":{"Price":"$3.99(1 - 4999 Pieces) $3.33(5000 - 9999 Pieces) $2.99(10000 - 29999 Pieces) $1.99(>=30000 Pieces)","MOQ":"1 Piece","Delivery Time":"Negotiable"}}

{"cid":"109977","pid":"21337287","pimg_url":"\/\/img1.b2bforus.com\/85\/d0\/6ab0bb5d4396\/product\/71131297_s-w400xh400.jpg","name":"Other Source Factory Products 200X30 mm Foamed Polyurethane Wheelchair Wheel","attrs":{"Price":"$3.99(1 - 4999 Pieces) $2.99(5000 - 9999 Pieces) $2.88(10000 - 29999 Pieces) $1.99(>=30000 Pieces)","MOQ":"1 Piece","Delivery Time":"Negotiable"}}

{"cid":"109977","pid":"21337269","pimg_url":"\/\/img1.b2bforus.com\/85\/d0\/6ab0bb5d4396\/product\/71131237_s-w400xh400.jpg","name":"PIVOT Source Factory Products 6X2 Swivel Heavy Duty Double Ball Bearing Polyurethane Caster Wheel","attrs":{"Price":"$6.60(1 - 1999 Pieces) $5.90(2000 - 4999 Pieces) $4.99(5000 - 9999 Pieces) $3.99(>=10000 Pieces)","MOQ":"1 Piece","Delivery Time":"Negotiable"}}

{"cid":"109977","pid":"21337254","pimg_url":"\/\/img1.b2bforus.com\/85\/d0\/6ab0bb5d4396\/product\/71131164_s-w400xh400.jpg","name":"PIVOT Source Factory Products 150X32mm Swivel Ball Bearing Polyurethane Caster Wheel","attrs":{"Price":"$5.99(1 - 1999 Pieces) $4.70(2000 - 4999 Pieces) $4.60(5000 - 9999 Pieces) $3.90(>=10000 Pieces)","MOQ":"1 Piece","Delivery Time":"Negotiable"}}