A.2391m3/h B.2414m3/h C.2461m3/h D.2344m3/h
A.石棉瀝青卷材、橡膠圈、預(yù)制套環(huán)石棉水泥 B.水泥砂漿、、橡膠圈、石棉水泥 C.橡膠圈、石棉水泥、承插式油麻石棉水泥 D.鐵絲網(wǎng)水泥砂漿抹帶、石棉瀝青卷材、石棉水泥
A.70% B.75% C.75.6% D.87.5%