产品概述

注：若用户需用阀板衬橡胶等特殊要求订货时请注明。
Notice:If the customer has any special requirements such as disc whit rubber lining etc.
Please specify while ordering.

注：若用户需用阀板衬橡胶等特殊要求订货时请注明。
Notice:If the customer has any special requirements such as disc with rubber lining etc.
Please secify while ordering