450M+ 정확한 판매线索， 비즈니스를 효율적으로 확장하고 B2B 사업의 성과를 높이는 데 도움이 됩니다. Note: The term "精准销售线索" is partially translated due to the presence of non-Chinese characters (銷售线索) which seem out of place in the original sentence. Assuming "销售线索" is meant to be part of the original text, it has been kept as is. However, if "銷售线索" was mistakenly included and should be ignored, the translation would be:450M+ 정확한 판매线索， 비즈니스를 효율적으로 확장하고 B2B 사업의 성과를 높이는 데 도움이 됩니다.