Which brand of Shenzhen gas is regular?

Shenzhen gas cannot be judged by which brand. Because every brand has formal and informal black gas. Whether it works or not, Shenzhen gas. Deep rock gas. Shennan gas and Shunwei gas all have black gas. It is necessary to distinguish whether the gas is normal or not. It can be distinguished from two aspects. 1, you must see a regular store to be formal. Those who don't write about bottled gas in Shenzhen are all black gas shops. 2. If you don't see the store. You must have an official WeChat account. Wechat booking is formal. At present, there is a WeChat public QR code to be formal. Because regular stores can apply. Black gas can't apply for WeChat official account.