SP di Piovan Silvano Sas & C.
紧固件工具
紧固件工具
Roll forming nut taps
Silvano Piovan sells and produces roll forming nut taps.
No cutting edge, internal threads are formed by plastic working. No chips ejected, which contributes to little trouble and stable tapping.
最后更新 ：
2026年3月18日星期三