Liquid nitrogen filling is available in the form of a bottle saferage, catering, the non-flammable type of nitrogen gas filling is also available in the form of a bottle saferage, due to the catering notability of the product.
They are also classified into the type of nitrogen gas filling and the liquid nitrogen gas filling, along with the bottle caps for catering to the catering industry. Stocking different types of nitrogen gas filling at Alibaba.comThe different type of nitrogen gas filling is also available through a water hose and in the oven.