我的帐户
公司
滚动到顶部
Are you new to WIDIA? Create an account and get started.
Create AccountAlready have an account? Sign in.
Sign InAre you new to WIDIA? Create an account and get started.
Create AccountAlready have an account? Sign in.
Sign In邮寄地址
A common internal thread, drilled so that it results in 50% of full thread will break the external thread, before the internal thread will strip. A common internal thread drilled out so that it contains 100% of full thread is only 5% stronger than a 75% height of thread, yet it requires 3 times the power to tap.