King Long commences delivery of 170 CNG buses to Queretaro, Mexico July 18, 2019 | Asia Pacific Company News China-based King Long has commenced the delivery of 170 buses fuelled by compressed natural gas (CNG) in Queretaro. Of these, 157 buses are 12 metres long and 13 articulated buses are 18 metres long. ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password