：RETZ瑞茨/我们一直致力于流体控制领域的持续，始于2005……进口高粘度电磁阀流体粘度通常在50cst 以下可以任意选择，若超过此值，则需要选择高粘度电磁阀 Retz The fluid viscosity is usually below 50cst and can be arbitrarily selected. If it exceeds this value, a high
