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Hebei Machinery Import i Export Co, Ltd je pretvoren u dioničko vanjskotrgovinske tvrtke u listopadu 2005. Kao i njegov prethodnik, Hebei Ogranak China National Machinery Import & Export Corporation je osnovana u listopadu 1974. godine, što je najraniji izvoz i uvoz tvrtka fokusirajući se na mehaničke i električne proizvoda u pokrajini Hebei ......
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Casting Materials of Valves ASTM Casting Materials Material ASTM Casting SPEC Service Carbon Steel ASTM A216 Grade WCB Non-corrosive applications including water, oil and gases at temperatures between -20°F (-30°C) and +800°F (+425°C) Low Temp Carbon Steel ASTM A352 Grade LCB Low temperatu...
Old and new DIN Designations Over the years, many DIN standards were integrated into the ISO standards, and thus also a part of the EN standards. In the cource of the revision of the European standards serveral DIN standards were withdrawn and replaced by DIN ISO EN and DIN EN. The standards used...