Остатки json

Здравствуйте!
Подскажите пожалуйста как в Битрикс сделать остатки и цену товара, чтобы они автоматически брались с одного сайта и обновлялись на моем??? Вот так выглядят остатки на другом сайте:

Скрытый текст

{"468":{"FIRM":"Balkan Pharmaceuticals","NAME":"CLENBUTEROL","DOZIROVKA":"0,04mg\/1","VUPAKOVKE":"100\u0442\u0430\u0431","QUANTITY":"7","ZAKUP":4.5,"ZAKUP_VALUT":"USD","PRICE_ROZN":"9.00","PRICE_VALUT":"USD"},"509":{"FIRM":"Cloma pharma","NAME":"Methyldrene 25","DOZIROVKA":"25\u043c\u0433","VUPAKOVKE":"100 \u043a\u0430\u043f\u0441\u0443\u043b","QUANTITY":"0","ZAKUP":0,"ZAKUP_VALUT":"USD","PRICE_ROZN":"2500.00","PRICE_VALUT":"RUB"},"30907":{"FIRM":"Ergo","NAME":"CLENBUTEROL","DOZIROVKA":"0,045mg\/\u0442\u0430\u0431.","VUPAKOVKE":"100\u0442\u0430\u0431.","QUANTITY":"0","ZAKUP":5.7,"ZAKUP_VALUT":"USD","PRICE_ROZN":"10.20","PRICE_VALUT":"USD"},"3216":{"FIRM":null,"NAME":"HYGETROPIN","DOZIROVKA":"10 IU \/ 3.7mg","VUPAKOVKE":"100 IU","QUANTITY":"0","ZAKUP":0,"ZAKUP_VALUT":null,"PRICE_ROZN":"9595.00","PRICE_VALUT":"RUB"},"25805":{"FIRM":"ZPHC","NAME":"ZPtropin","DOZIROVKA":"10IU(3.33mg)","VUPAKOVKE":"100IU","QUANTITY":"0","ZAKUP":105,"ZAKUP_VALUT":"USD","PRICE_ROZN":"155.00","PRICE_VALUT":"USD"},"28680":{"FIRM":"Nordex","NAME":"Nordex SOMATROPIN","DOZIROVKA":"3.33mg","VUPAKOVKE":"5 \u0444\u043b\u0430\u043a\u043e\u043d\u043e\u0432 \u043f\u043e 10IU","QUANTITY":"0","ZAKUP":65,"ZAKUP_VALUT":"USD","PRICE_ROZN":"2990.00","PRICE_VALUT":"RUB"},"665":