Dear Sir/Madam, Hi, So i sent you a mail previous week,did you get it?It is an inquiry about cylinder. I looking for your reply. Best Regards Moshrefzadeh Shahrzad Moshrefzadeh Commercial Buyer International office RTI CO. Email: sh.moshrefzadeh@gmail.com I want to receive: Product Spec . Price Payment . Sample Needed . Delivery Info . Product Catalog . Minimum Order . Inventory Info . Packing Info .