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: 304M2,304M3
Specifications: φ5.5～7.5mm
Applied Standard:  agreement
Characteristics: cycle spoke wire and other small gauge wire,Spring wire
Applications: Stainless steel wire
Use of Products: 304M2,304M3is a low-cost stainless steel。It is in the shape of low Ni to reduce the cost and arise N to keep the tensile strength。