Leli phepha lethula imibono yezobuchwepheshe yokuthuthukiswa kwama-valve e-electroplating
Leli phepha lethula imibono yobuchwepheshe yokuthuthukiswa kwama-valve e-electroplating Ama-yuan amathathu ethylene propylene ipayipi lomlilo ikhadi lokuvala indandatho yerabha, 63-65 Shaw A,15MPA, ingcindezi eqhubekayo engaphansi kuka-25% wedizayini yenhlanganisela engabizi kakhulu. Uketshezi (igesi, uketshezi...
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