PET preform demanded from Oman

We are leading bottled water manufacturer in Oman we need lower grammage of preform for our 200 ml,500 ml,1.5 ltr bottle production grammage for 200 ml bottle 6.9 gm to 7.5 gm for 500 ml 10 gm to 11 gm for 1.5 litre 23gmto 24 gm.