... 1.Optimized material formula, anti-corrosion and anti-aging. 2.New-type wide and long passageway. Inlaid chip/paster drip irrigation pipe ... performance of resist blocking. 3. The machine adopts labyrinth type passageway,it has certain pressure compensation effect.4. The space ... product adopts post forming technology,it has high precision.2.New-type wide and long passageway, it has the advantage of ...