pe/hdpe/pvc large dia. double-wall corrugated pipe is a new-type plastic tubing with the annular ripple on the outside wall and the smooth structure on the inner wall. compared with other structures of non-conventional wall tubing, its weight is much lower than that of even wall tubing or concrete tubing at the same annular stiffness due to its excellent design of tubing wall structure. it is easy to connect and construct. the cost of tubing can be decreased by a large margin and it can increase the competitiveness of tubing market. it is popular and applicable generally abroad and it has greatly substituted the traditional concrete tubing and other structure wall tubing. contactor£ºmr liu tel£º82213636 fax£º82210563 email:info@china-zhenxiong.com url£ºhttp://www.china-zhenxiong.com