91影院福利在线观看_成人无码在线免费播放_日本无码A级毛片免费视频_DVD原版蓝光版中文字幕包_综合亚洲欧美国产二区_亚洲精品午夜无码不卡_18岁亚洲美女搞黄_蜜桃成人看片在现观看

Matters needing attention in the production of straws

Source: Zhejiang Junfa Daily Necessities Co., Ltd.Release time: 2021-09-18

Making of straws

Production method: After the plastic is melted, it is passed through an extrusion die, which is the mouthpiece, and then the machine extrudes the plastic like a syringe (this process is continuous, and there is a screw on the machine that will extrude at a certain speed), When the plastic is still softened, it is fed into the machine, directly molded, and then cut by the machine later, and it becomes the straws we see section by section.

Attention issues

The "three noes" straws may be processed from recycled waste plastics. Once exposed to high temperatures, they will produce toxic substances and endanger your health. There must be a problem with the quality of the "three noes" plastic straws. Because they are made of inferior or recycled plastics, pigments may be used to cover impurities. Once you use it to drink fruit juice or hot drinks, harmful substances will be dissolved, thereby causing harm to the human body.