Donsen idakhazikitsidwa mu 1996, yomwe ili ku NINGBO komwe kuli mzinda wotukuka komanso wokongola padziko lonse lapansi. Kukhala ndi zaka zoposa 20 zinachitikira m'munda uno, ndife mmodzi wa opanga akatswiri okhazikika kupanga mapaipi pulasitiki madzi ndi ulimi wothirira.

mankhwala athu chachikulu ndi PP-R mipope ndi zovekera, PP psinjika zovekera, C-PVC mipope ndi zovekera, mapaipi U-PVC ndi zovekera, mipope Pe ndi zovekera, Pe-RT mipope pansi Kutentha mapaipi, zisamere pachakudya pulasitiki ndi mitundu yonse ya mavavu pulasitiki. Mwachitsanzo: PVC valve, PPR valve, C-PVC valve, valavu ya BRASS.