PE/PP pipe and fittings manufactures in Turkey

PE/PP pipe and fittings manufactures in Turkey
to whom it may concern:

I'm interested to contact with the most powerful manufacturers in Turkey of PE and PP pipe and fittings (water supply, waste water, drainage etc...)

reason - for business

I would appreciated if you'll send me a list with the names of these manufacturers.

a prompt reply will be appreciated.

Best regards,