Donsen ali ndi mbiri yakale ndipo ndi katswiri wopanga mapaipi, zopangira ndi mavavu. Donsen unakhazikitsidwa mu 1996, ili mu Ningbo, China, amene ndi chuma otukuka ndi yabwino mayendedwe mzinda . Donsen ndi mmodzi wa opanga ndi dongosolo kwambiri wathunthu mankhwala m'munda wa mapaipi pulasitiki ku China.

Pakali pano, Donsen gulu makamaka umabala valavu mndandanda: PPR valavu, valavu PVC, CPVC valavu, Pe valavu ndi mitundu ina yamkuwa valavu pulasitiki;Kumanga madzi kotunga mndandanda: PPR chitoliro zovekera, PPR mwamsanga kukankhira zovekera, PPR mkuwa pulasitiki chitoliro zovekera, etc. Zomangamanga ngalande: PVC chitoliro zovekera, zovekera chitoliro HDPE ndi zina zotero; Industrial madzi zino: Pe chitoliro zovekera, etc.Civil moto chitetezo mndandanda: CPVC zovekera chitoliro, etc. ulimi wothirira madzi opulumutsa: PP psinjika chitoliro zovekera, PE zovekera chitoliro, etc.Floor Kutentha mndandanda: PERT pansi Kutentha chitoliro, wogawa madzi, etc.Our kampani alinso kupanga pulasitiki nkhungu: PPR chitoliro nkhungu, PP pulasitiki nkhungu, PP pulasitiki nkhungu ABS; Panthawi imodzimodziyo, tidakali ndi mndandanda wazitsulo zopangira ma valve oti tipangidwe: mndandanda wa zida za chitoliro za ku America, mndandanda wa zida za PVC za PVC, DIN wamba PVC zovekera ndi zina zotero. Zogulitsa zathu zimagwiritsidwa ntchito kwambiri pamadzi a boma, ngalande zomanga, madzi ndi kutentha, zokongoletsera zapakhomo ndi ulimi wothirira m'munda, ulimi wothirira ndi minda ina.

Pofuna kupanga banja ntchito pa khalidwe chilengedwe cha mankhwala chitoliro, Donsen kutengera ankaitanitsa mkulu khalidwe zopangira kubala zinthu, pofuna kuonetsetsa mankhwala khalidwe, Donsen limayambitsa mayiko apamwamba khoma zotayidwa gulu chitoliro mzere kupanga chitoliro, monga mzere fiberglass kupanga, PPR mkuwa ndi pulasitiki mzere kupanga, pawiri imayenera kupanga mzere etc. Kwathunthu 9 patsogolo chitoliro mzere ndi zoposa 70 makina ophatikizika opangidwa ndi makina ophatikizika a jekeseni, makina osakanikirana ndi makina opangidwa ndi makina opangidwa ndi makina opangidwa ndi makina opangidwa ndi makina opangidwa ndi makina opangidwa ndi makina osakanikirana. & ntchito yamakina m'malo mwa buku kuti apange Donsen kukhala otetezeka, olondola komanso odziwa zambiri. Pofuna kukwaniritsa 100% apamwamba, Donsen ali ndi ulamuliro okhwima & kuyendera kwa zinthu zomwe zikubwera zoyendera, kuyang'anira ndondomeko, kuyang'anira kutumiza, kuonetsetsa kuti zinthu zili bwino.

Pakalipano, Donsen ali ndi mafakitale atatu akuluakulu a chitoliro & zovekera kupanga, fakitale imodzi ya nkhungu, ndi mtundu wina watsopano wazitsulo zopangira zokha, Donsen fakitale ili ndi msonkhano wopitilira 70000, ogwira ntchito oposa 700 ndi gulu limodzi lapamwamba laukadaulo & kasamalidwe, gulu lazaka zapakati pazaka zopitilira 35, kukhala ndi mphamvu, luso komanso kuthekera, amatha kupereka makasitomala abwino. Donsen likulu (A fakitale) makamaka umabala PPR zovekera chitoliro, PE zovekera chitoliro ndi zinthu zina zopezera madzi ndi mitundu yonse ya mavavu. B fakitale makamaka umabala PVC chitoliro zovekera, HDPE chitoliro zovekera ndi mankhwala ngalande; C fakitale makamaka umabala PP psinjika chitoliro zovekera ndi zina ulimi ulimi wopulumutsa madzi ulimi wothirira mankhwala. The nkhungu fakitale makamaka ndi udindo kupanga mitundu yonse ya nkhungu chitoliro ndi fakitale latsopano kwambiri kuwonjezera linanena bungwe zovekera chitoliro wathu, mavavu, mapaipi.

Pakadali pano, kampaniyo yadutsa chiphaso cha CE ku European Union. Chitsimikizo cha NSF ku USA; Satifiketi ya SABS ku South Africa; Chitsimikizo cha GOST ku Russia; WRAS certification ku England, SIAA certification ku Japan; Chitsimikizo cha SKZ yaku Germany ndi ziphaso zina.

Zogulitsa zathu zimatumizidwa kumayiko oposa 100 padziko lapansi, monga Russia, Ukraine, France, Italy, Mexico, Middle East, Europe, South America, Asia, etc. Makasitomala athu akuphatikizapo mafakitale amalonda akunja, komanso ogulitsa kunja ndi amalonda, omwe ndi makasitomala athu akuluakulu. Pakadali pano, pali othandizira a Donsen brand series m'maiko onse padziko lapansi. DONSEN adzakutumikirani ndi mtima wonse, ndikuyang'ana othandizira.