加拿大外贸
This is some information about the properties of rubber:Oil-resistant rubber rings operate at t from -60 ° C to +200 ° C and
the velocity of 0.5 m / s in different media under pressure:
up to 50 MPa in the fixed units and up to 32 MPa in the movable
joints in mineral oils liquid fuels, emulsions, lubricants, fresh
water and sea water.
up to 40 MPa in the fixed joints and up to 10 MPa in the movable
joints in an environment of compressed air.
For the velocity of 5 m / c in any given environment.
[ 本帖最后由 patty-chu 于 2011-10-8 14:00 编辑 ]
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请大侠帮忙，不胜感激，谢谢
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