While countries around the world scramble to shore up their own dwindling medical supplies amid the Covid-19 pandemic, Beijing has rolled out policies to help Chinese manufacturers ramp up production to over 100 million masks every day. China’s mask production rate is now five times higher than it was before early 2020 when the nation became the epicentre of a global health crisis sparked by a novel coronavirus first detected in the city of Wuhan. Even before the outbreak, China was making…