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1.Ball valve design includes reinforced/enhanced PTFE seats and electroless nickel plated brass ball, blow-out proof pressure retaining stem, and low profile oval handle.
球阀结构包括强化聚四氟乙烯（PTFE）阀座和非电解镍镀层黄铜球体，防吹出压力保持阀杆，以及低矮型椭圆手柄。收藏指正
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