‘X’ contracts with ‘Y’ to purchase 30 chairs of a particular brand called make and type. ‘Y’ delivers 15 chairs of that quality and 15 chairs of some other make - 4shared에서 다운로드하세요. ‘X’ contracts with ‘Y’ to purchase 30 chairs of a particular brand called make and type. ‘Y’ delivers 15 chairs of that quality and 15 chairs of some other make(은)는 무료 파일 공유 서비스 4shared에서 호스팅됩니다.