There are two kinds of certificates for electricians and welders, namely, special operation certificate (post certificate) and professional qualification certificate (grade certificate), which are issued by the safety production supervision and management department and the labor and social security department respectively.

Where are you in Shanghai? I know the following places. Do you think they will help you?

Shanghai Fengxian district staff training school

Address: No.2150, Shanghai-Hangzhou Highway, nanqiao town, Fengxian District.

Tel: 57 107452

Shanghai orient occupational safety skills training center

620 Daduhe Road

5282 1925

5282 1476

I'm glad to answer the landlord's question. Please forgive me if there is any mistake.