All amendments, supplements and alterations to the terms and conditions of the present Contract shall be made in written form and signed by the authorized representatives of both parties upon an agreement has been reached through consultation and they sha
All amendments, supplements and alterations to the terms and conditions of the present Contract shall be made in written form and signed by the authorized representatives of both parties upon an agreement has been reached through consultation and they sha
本合同所有更正、补充和修改的条款和条件均应采用书面形式，由双方授权的代表签字后达成协议,此外他们应将此合同整体部分做成表格,其具有合同本身的同等效力.