我国农村普遍采用明沟、渠式的灌溉网,这不但浪费了大量耕地、渗漏蒸发严重,而且不利于机械化耕作。而普通的地下输水管的投资较多,难以在农村推广。本品由软质塑料内外管、处于两管之间的螺旋状支撑筋及控距链构成,制造成本为低廉,具有质轻、可自由弯曲运输以及安装方便等特点 China’s rural areas generally use the open ditches and canals irrigation network, which not only wasted a lot of arable land, leakage evaporation is serious, but not conducive to mechanized farming. The ordinary investment in underground pipes is more difficult to promote in rural areas. This product consists of flexible plastic inside and outside the tube, between the two tubes of spiral support ribs and control chain composition, manufacturing costs are low, with light weight, free bending transport and easy installation and so on