Shandong Yibiyuan Water-saving Irrigation Technology Co., Ltd. is a comprehensive professional enterprise integrating the research, development, production, operation and technical services of plastic pipe, pipe fittings, sprinkling irrigation, drip irrigation, filter, fertilizer applicator, air inlet and vent valve, built-in drip irrigation pipe, cut-off valve, constant-pressure frequency-conversion control equipment, pressure compensation emitter, drip tip, current stabilizer, drip irrigation