Dear D.nualhong
Thanks for your reply this afternoon for fence lighting embedded parts.
Actually, on 20th March i sent you a email to explain for this issue, and suggest to use the ∅20mm metal pipe, andyour reply is ok, so we follow this modify the drawings for fence lighting layout and also submitted.
For this i totally understand your meanning, but righ now we already purchase this materials, and also if use the thick and midium type it will take long time to make order to factory and the fence work will stop right now(can't buy the blended thick or midium metal pipe in the market.)
By the way, the thin metal pipe is in the fence concrete, so i think actually it can be used with no problem and will save our time for the fence work(if change, need at least 10 days wait). So please consider for fence we use this type materials and for the PV modules area we will follow the contract and design meeting minutes.
Thanks for your undestanding and wait for your reply.
Wang Jin