... -SL06C Dia.: 28MMColor: white, black, nature and so on Locking system: up lockSpring: STN STL 304Packaging & Delivery:Packaging ... circle is also available.5, Plastic spring design and external spring lotion pump are environmental protection.6, Patents, ... STLACTUATORPPDIP TUBELDPESTEMPPPISTONHDPECHAMPLEPPBALLGLASS/STLGASKETPECLOSUREPPHOUSINGPP New dispenser pump external spring pump YH-SL06C