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氟胶O型圈65x66x69x70x75x77x80x85x90x95x100x2mm耐高温密封圈
氟胶O型圈65x66x69x70x75
氟胶O型圈外径65x66x67x68x69x70
氟胶O型圈外径61x62x63x64x65