钢管制造；
介绍了一种新的冶金结合复合钢管制造工艺及工业应用情况。
A new manufacture process and application instance of metallurgy integrated complex steel pipe is introduced.
车底踏板采用高级合金制造，车杆和后轮盖（刹车）刹车采用高强度钢管制造，美观坚固。
The pedal of its bottom is made of advanced alloy, and the pole and rear-wheel cover are made of high strength steel tube, which looks quite beautiful and firm.
床面，床架、床脚全部采用冷扎钢板，冷扎钢管制造，并经二度磷化后喷涂，品质达到国家级标准。
Material: Bedbody, Bedframe, Bedleg full use of cold rolling steel plate, cold rolling steel pipe manufacture, and the second phosphating after spraying, to achieve national quality standards.
允强及彰源公司都是专业的不锈钢钢管制造商，产品质量符合CNS,JIS及ASTM等国家规范标准。
YEUN CHYANG and FROCH are specialized manufacturer for stainless steel tube and pipe. Products are in conformity with CNS, JIS and ASTM standards.
允强及彰源公司都是专业的不锈钢钢管制造商，产品质量符合CNS,JIS及ASTM等国家规范标准。
YEUN CHYANG and FROCH are specialized manufacturer for stainless steel tube and pipe. Products are in conformity with CNS, JIS and ASTM standards.
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