An " aval " is given either on the cheque itself or on an " allonge " .
保证应在支票或其粘单上为之。
Article 62 in case that the guarantor does not put the word " guaranty " on the bill or on the allonge but sign a guaranty contract or guaranty clauses , the people 's court shall apply the relevant provisions of the guaranty law of the people 's republic of china .