Feng Cai brand brass floor drain DL12-12F-05 1) From the main body of the product to the inner core all independent research and development every floor drain represents Feng Cai people`s spirit of precision 2) GB-hpb59-1 brass carved panel 3) Aviation grade ABS seal 4) Full cooper forged floor drain body 5) Gravity straight drain core 6) Silicone sealing ring 7) Mechanical gravity drainage