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: 50BV30
Specifications: Φ6.5-42mm
Applied Standard:  agreement
Characteristics: As usual,this product is used to produce the high-strength tools sleeve.
Applications: Hand tool steel
Use of Products: This product has characteristics of uniform-chemical composition, low percentage of harmful elements, high purity, good surface quality. After spheroidize annealing, this product has the characteristics of good cold heading properties. And the product has excellent hardenability.