久久精品无码人妻无码AV,欧美激情 亚洲激情,九色PORNY真实丨国产18,精品久久久久中文字幕

您好,歡迎來(lái)到易龍商務(wù)網(wǎng)!
全國(guó)咨詢熱線:13904124287

圣霖工字鋼報(bào)價(jià)服務(wù)為先【圣霖國(guó)際】

【廣告】

發(fā)布時(shí)間:2020-12-19 07:25  






普通工字鋼和輕型工字鋼的型號(hào)是用其腰高厘米數(shù)的阿拉伯?dāng)?shù)字來(lái)表示,腹板、翼緣厚度和翼緣寬度不同其規(guī)格以腰高×腿寬(b)×腰厚(d)的毫數(shù)表示,如“普工160×88×6”。

The ordinary beam and light I-beam model is the digital Arabia with its waist high cm number to represent, web and flange thickness and flange width of different specificati to the waist high (H) * (b) * waist leg width thickness (d). The number of said, such as "general 160 x 88 x 6"


槽鋼的原料鋼坯為含碳量不超過(guò)0.25%的碳結(jié)鋼或低合金鋼鋼坯。成品槽鋼經(jīng)熱加工成形、正火或熱軋狀態(tài)交貨。其規(guī)格以腰高*腿寬(b)*腰厚(d)的毫米數(shù)表示,如150*78*9。

The raw billet of the channel steel is a carbon steel or low alloy steel billet containing less than 0.25% carbon content. The finished channel steel is delivered by hot forming, normalizing or hot rolling. Its specificati are represented by the millimeter number of waist height (H) * leg width (b) * waist thickness (d), such as 150*78*9.



行業(yè)推薦
陈巴尔虎旗| 晋城| 孟州市| 固原市| 乃东县| 上饶市| 大埔县| 昌图县| 库伦旗| 丰城市| 东乡县| 高阳县| 西乡县| 双流县| 柘城县| 金溪县| 文水县| 通海县| 海淀区| 西充县| 白朗县| 景洪市| 丁青县| 台南县| 拜城县| 麦盖提县| 阜南县| 莱西市| 昌邑市| 高邑县| 镇原县| 成武县| 五家渠市| 原阳县| 保定市| 阳东县| 阿图什市| 广昌县| 鱼台县| 岑巩县| 拜城县|