Inquiry (采购产品): Cylinders for O2 service We are interested in cylinders for O2 service, 250 to 300 cf, working pressure 2015 to 2400 psi, DOT 3AA. Please send us your best quotation Regards Pedro E. Ramos **** Hidden Message ***** Pedro Ramos 44160 Company: PSI Mexico E-mail: pedro.e.ramos@hotmail.com **** Hidden Message ***** pedro.e.ramos@hotmail.com