Đã Hủy

Technical Advice for Industrial waste management

2 freelancer đang chào giá trung bình $16/giờ cho công việc này

$22 SGD / giờ
(2 Nhận xét)

I am very well qualified chemist with experience working in waste water treatment.I have graduated from Faculty of science with honor degree in Biochemistry/chemistry department.I have developed many innovative solutio Thêm

$10 SGD / giờ
(0 Nhận xét)