十、接頭和封頭均有一一對應的編號,安裝時請按編號一一對應安裝。否則,則會出現有的過緊,有的過
松的現象。 10, There is a pair of code number in jointer and sealing head. The installment should be carried out
according to code number. Otherwise, tighter and looser phenomenon will happen to jointer and
sealing head.