Imishini yokuvikela i-Ensulationmengtal nobunjiniyela
-
I-Xiangyang Zhengda Environmental Ukuvikelwa Kwemvelo
-
Iphrojekthi ye-Zhengda Okuphakelayo (Suixi) iphrojekthi yokuvikela imvelo
-
Iphrojekthi yeChangsha Zhengda Environmental Protection Project
-
I-Ningbo Zhengda Cixi Okuphakelayo Ifektri Yokuvikelwa Kwezemvelo Yezemvelo
-
I-Nantong zhengda Aquengda Aquatic Environmental Project Project
-
I-CP AQUA (Beihai) Iphrojekthi Yokuvikela Ukuguqulwa Kwezemvelo