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"Canada doesn't view trade surpluses or deficits as a primary measure of whether a trading relationship works," Freeland said in her opening remarks, adding current trade between the US and Canada is "balanced and mutually beneficial."

"But they should do a good job in terms of quality and service. If not properly handled, the business will affect Chinese brands' reputation," said Zhang.

"But the most challenging situation is yet to come, probably in May and June, when there is a time lag of about one to two months from receiving an order to delivery," said Pan, 42, who is based in Ningbo, Zhejiang province. Zhejiang is one of the country's major centers of foreign trade.

"China is always open for negotiations," Gao said, emphasizing the principles of equality, constructiveness and balance needed in joint efforts.

"China is paying great attention to the development of this technology. Our principle is to encourage trials, allow failures, ensure safety and oppose monopolies," he said.