ZHEJIANG DONSEN Environmental Teknụzụ CO., LTD e guzobere na 1996, emi odude ke NINBGO, China, nke bụ ọkachamara maka PVC ọkpọkọ & oyiyi akwa, PPR ọkpọkọ na oyiyi akwa, PP mkpakọ oyiyi akwa, CPVC ọkpọkọ na oyiyi akwa, PE ọkpọkọ na oyiyi akwa, PPR ngwa ngwa valvụ plastic ọkpọkọ niile. VALVES, PPR VALVES, PP VALVES wdg), ebu wdg DONSEN bụ otu n'ime ndị na-emepụta ihe na usoro ngwaahịa kachasị mma n'ọhịa nke ọkpọkọ plastik na China.A na-eji ngwaahịa anyị eme ihe n'ọtụtụ ebe na mmiri obodo, ụlọ drainage, mmiri na-ekpo ọkụ na kpo oku, ihe ịchọ mma ụlọ na ubi ubi, ubi ugbo na ubi ndị ọzọ.
Iji mee ka ezinụlọ na-eji na gburugburu ebe obibi nke ngwaahịa ọkpọkọ, DONSEN nakweere akụrụngwa dị elu dị na mbubata iji mepụta.
ngwaahịa, iji hụ na ngwaahịa mma, DONSEN ewebata mba elu elu mgbidi aluminum mejupụtara ọkpọkọ mmepụta akara, dị ka fiberglass mmepụta akara, PPR brass na plastic mmepụta akara, okpukpu abụọ nke ọma mmepụta akara wdg.
Ka ọ dị ugbu a, ụlọ ọrụ ahụ agafeela asambodo CE nke European Union. Asambodo NSF na USA; Asambodo SABS na South Africa; Asambodo GOST na Russia; Asambodo WRAS na England, asambodo SIAA na Japan; Asambodo SKZ nke Germany na asambodo ndị ọzọ.
A na-ebupụ ngwaahịa anyị na mba 100 n'ụwa, dị ka Russia, Ukraine, France, Italy, Mexico, Middle East, Europe, South America, Asia, wdg ugbu a, e nwere ndị nnọchiteanya nke DONSEN akara usoro ngwaahịa na mba niile n'ụwa. DONSEN ga-eji obi gị dum jeere gị ozi ma na-achọ ndị nnọchi anya.