三级中文字幕,www.日韩操,国产亚洲精品美女久久久,97 人人操操人人

Main Products
Products Grade: C10C、C8C
Specifications: Φ6.5-40 mm
Applied Standard:  Q/XG123
Characteristics: The product is used to produce vehicle parts of German car and cold -forming parts.
Applications: Common parts
Use of Products: The product is used to produce vehicle parts of German car .It is also can be used to produce fastener of grade 4.8 to 6.8 and non-standard parts. The product has characteristics of uniform-chemical composition, low percentage of harmful elements, high purity, good surface quality, high accuracy of geometric dimensions, low rate of cracking.