1. Gịnị bụ isi ngwa nke hydroxypropyl methylcellulose (HPMC)? Azịza: A na-eji HPMC eme ihe n'ọtụtụ ebe na ihe owuwu, mkpuchi, resins synthetic, ceramics, ọgwụ, nri, textiles, ọrụ ugbo, ihe ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ. Enwere ike kewaa HPMC n'ime ọkwa owuwu, nri g ...
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