Amathiphu okulungisa ama-valve ase-China: Indlela yokugcina i-valve yokumisa yase-China isesimweni esihle
II-valve yesiShayina iyithuluzi elivame ukusetshenziswa lokulawula uketshezi, futhi ukugcinwa kwalo kubalulekile ukuze kugcinwe isimo esihle. Lesi sihloko sizokunikeza amathiphu mayelana nokugcinwa kwamavalvu embulunga yaseShayina ngokombono wochwepheshe ukuze ukusize ugcine isimo esihle sevalvu yeglobhu yaseChina.