Amavalvu esango lodaka ayisango eliqinile, isiqu esikhuphukayo, amavalvu esango anezivalo eziqinile, lawa mavalvu aklanywe ngokuhambisana nezindinganiso ze-API 6A. Asetshenziswa kakhulu odakeni, usimende, ukuqhekeka kanye nenkonzo yamanzi futhi kulula ukuwasebenzisa futhi kulula ukuwanakekela.
Uphenyo
5-1203, Indawo Yezimboni yaseDahua, No.2 Yunshui Road, indawo yokuthuthukiswa kobuchwepheshe obuphezulu, eXi'an, 710065, eShayina 
86-13609153141
