国产一级精品毛片,亚洲综合视频在线,精品少妇嫩草专区共享,国产午夜精品二区三区

65Mn spring steel strip

1．Material:65Mn, 50#, 60Si2Mn, T8-T10A.

2．Specification: Thickness: 0.25mm - 2.5mm  Width: 30mm - 260mm

3．Surface: Heat treatment,black, bright(white),blue and yellow.

4．Hardness: HRC40-49(or according to customer’s requests)

5．Application: rolling shutter spring steel strip, hardware tool, mud trowel, shovel,woodworking band saw blade,automatic clutch patch, horology clockwork spring and shoes material.

6．Packaging: standard export packaging(oiled,inner plastic film, outer side Hessian clothes,then on iron/wooden pallets)