Why do some PVC hoses have high prices, some have low prices, and where are the quality gaps?

The odorous PVC hose on the market smells like gasoline kerosene, because PVC hose adds a cheap volatile plasticizer, which is called “solvent oil” and “second oil” in the industry. , for a variety of waste plastic extracts, containing a variety of heavy metals and hazardous substances;
In PVC hose, irritating odor can be detected at low concentration; long-term, low-concentration exposure can cause headache, dizziness, fatigue, sensory disturbances, decreased immunity, and may appear drowsiness, memory loss or neurasthenia, mental depression; chronic poisoning The harm to the respiratory system is also huge; long-term exposure can cause respiratory dysfunction and liver poisoning; manifested as liver cell damage, abnormal liver radiation ability, etc.; plants that have long-term exposure to this harmful substance will also appear rot, yellow , defoliation, individual buds withering and other phenomena;
So do not choose odorous when choosing PVC hose.