国产午夜激无码av毛片不卡_久久亚洲精品成人AV无码网站_免费在线观看成人网毛片_久久久久亚洲精品中文第一幕_国产无码高清在线视频_我要看A级毛片特黄_久久五月天亚洲_日韩欧美人妻偷拍_日本妇人成熟免费_国产av午夜福利

Raw material tape is a commonly used auxiliary product in plumbing installations, and is generally widely used in pipe joints to enhance the airtightness of pipe joints.

Raw material belt is also called polytetrafluoroethylene belt. Polytetrafluoroethylene is a polymer of tetrafluoroethylene. The English abbreviation is PTFE. Common white PTFE belts are commonly used in HVAC and water supply and drainage, and there are special PTFE belts for natural gas pipelines. In fact, the main raw materials are all PTFE, but some processes are different. A new product in the field of Feishte industry: S1701 raw material belt is excellent in raw materials and production technology, and even in packaging. Each roll of raw material tape is non-toxic, tasteless, excellent sealing, insulating and corrosion resistance. It can be widely used in various fields such as construction and household water and electricity decoration, water treatment, natural gas, chemical industry, electronic engineering, etc., for effective sealing of various plumbing and pipe joints.