why were the Manchus rulers not willing to allow the entry of foreign goods into China ?

(i) In the late 18th century, the English East India Company was buying tea
and silk from China for sale in England.
(ii) But England at that time produced nothing that could be easily sold in China.
(iii) The Confucian rulers of China, the Manchus were suspicious of all
foreign merchants.
(iv) They feared that the merchants would interfere in the local politics and
disrupt their authority.
So, the Manchus rulers were not willing to allow the entry of foreign
goods into China.