Ukusuka kwimveliso ukuya kwintengiso: ukuhlolwa okubanzi kwevalve yebhabhathane yaseTshayina, ivalve yebhola yaseTshayina, ivalve yesango laseTshayina, ivalve yeglowubhu yaseTshayina, ikhonkco lokubonelela ngevalve yaseTshayina
Ukusuka kwimveliso ukuya kwiintengiso: ukuhlolwa okubanzi kwevalve yebhabhathane yaseChina, ivalve yebhola yaseChina, ivalve yesango laseChina, ivalve yeglowubhu yaseChina, iChina isheke ivalve yokubonelela ngekhonkco leValve yinxalenye ebalulekileyo yezixhobo zokulawula ulwelo, ezisetyenziswa ngokubanzi kwipetroleum, imichiza, el.. .
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