国产免费高清在线 , a视频免费观看 , 云端之上电影完整版在线观看 , 天梯电影在线观看完整版,www.九色,97人人爱人人,韩国国产在线

Main Products
Products Grade: SWRCH6A,SWRCH7A,SWRCH8A
Specifications: φ5.5～42mm
Applied Standard:  Q/XG 114
Characteristics: adapted for all kinds of low intension standard-part and nonstandard -part.
Applications: Common partsCommon fastenerconstruction fastener steel
Use of Products: Steel SWRCH6A and SWRCH8A are the common using steels produced the Fasteners of low intension and big deformation and the nonstandard-part. The productions have advantages of steady composition, low harmful element, high pure steel and small surface defect. Using them, it is unnecessary to heat treatment and the rate craze of cold forging is low. They are used in the industry of family electricity, traffic, mechanism and transport.The steel grade gains the gold-cup of the metallurgical product actual quality in 2007.