After negotiation of the master contract, the ordering and consumption of services typically occurs on an incremental basis.
之后，谈判主合同，订购和服务性消费发生的原因通常是对增量的基础上。
Refrigeration HVAC industry enterprises and agents, distributors, traders, such as the audience of nearly 5,000 professional visitors, negotiation and ordering.
制冷暖通行业企业及代理商、经销商、贸易商等近5000名专业观众前来参观、洽谈、定货。
Refrigeration HVAC industry enterprises and agents, distributors, traders, such as the audience of nearly 5,000 professional visitors, negotiation and ordering.
制冷暖通行业企业及代理商、经销商、贸易商等近5000名专业观众前来参观、洽谈、定货。
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