ASTM F1546消防水龙头连接头标准规范
日期:2012-02-08 12:14
I; and Class III. Classes may be subdivided into two general sizes. Tensile strength, ultimate elongation, tensile set test, compression set test, accelerated aging test, aging exposure, ultraviolet light-water exposure, discharge calibration test, flow pattern test, flushing test, control tests, corrosion exposure, high temperature test, low temperature test, rough usage test, leakage test, hydrostatic pressure test, operator protection test, and horizontal distance shall be performed to confor
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09/15 11:41