Acid-proof , alkali-proof , corrosion resistance , and easy to be shaped ;
耐酸、耐碱、耐腐蚀，可塑性性强、不易氧化、不易热胀冷缩；
2
Special control system. The internal structure applies acid-proof and alkali-proof design, so as to prolong the product life.
特殊化控制系统设计，内部结构采用防酸、碱设计，延长使用寿命。
3
Sand well the bag is a kind of anti - to pull the strength higher, water the well ventilated is good, and the acid-proof alkali decay with the material that the microorganism erode.