进口衬胶隔膜阀|进口衬里隔膜阀|全衬隔膜阀|天然橡胶隔膜阀|广东深圳 进口衬胶隔膜阀阀体内腔表面无衬里或覆有可供选择的各种橡胶，于控制非腐蚀性或一般腐蚀性介质的隔膜阀。 Rubber lined diaphragm surface of the body cavity lined or covered with a choice of a variety of rubber, dedicate
