The same layer drainage tube inner wall is smooth, and not with use time change, friction resistance is small, saving energy, pressure loss is about 30% less than steel tubes, you can choose to use a smaller caliber than steel tubes. Sanitary performance is good, no additives, no contamination of drinking water possibility, ISO standard graded polyethylene materials are grade 0, not moldy materials, with some other commonly used plastic materials compared, polyethylene's mold resistance is much higher, long term use is also not scale.LifetimeLong,A tɛ̈n yenë yen luui thïn alëu bï run 50 looi.

Sichuan Chuanjie Building Materials Science and Technology Co., Ltd. acï bɛ̈n gam ISO9001: 2000 Quality System Certification, ku ka cï bɛ̈n gam ka cï bɛ̈n gam ka cï bɛ̈n gam. Production Equipment yeGerman de Como Production Line. Kä ye looi në teknoloji ye kɔnɔ, ka tɔ̈u në luɔɔi ye kɔnɔ, ka tɔ̈u në luɔɔi ye kɔnɔ, ka tɔ̈u në luɔɔi ye kɔnɔ, ka tɔ̈u në luɔɔi ye kɔnɔ, ka tɔ̈u në luɔɔi ye kɔnɔ."Professional management, honesty to do people" ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan ye raan