Production Line for Drip irrigation pipe with round dripper Our high-quality plastic machines are best sold world-wide for 4 reasons listed below. ... a range of plastic products in different sizes. Key words: drip pipe with blue lines, trickle pipe, 3 holes, 4 holes ... , 5 holes, 6 holes, drip tape, drip pipe, trickle pipe, drip belt,round drippers, flat drippers, dripper mould, emitter ...