一na-akpọ aha nd242中国maka聚醚醚酮。阿纳伊吉雅梅伊赫n'ọtụtụ ebe na mbara igwe,阿赫伊克,ọgwụ na ụlọ ọrụ nhazi nri, dka akụkụ nhazi气体分析仪na ikpo ọkụ na卫星。N'ihi nguzogide esemokwu ya dmma, ọ ghwo ihe dmma na mpaghara nke ngwa esemokwu, dka ihe mkpuchi, ihe na- amam, oche valve, mgbanaka akara, mgbanaka mgbapgs - ta mgbapgs - ta, wdg。