主要是怕 只有邀请 会怀疑没有实际的服务 我有些会议的审稿 也没有thank‘ you letter 估计也不能用了
【在 a****a 的大作中提到】 : invitation letter一般就可以的吧
s*2
11 楼
谢谢! 收包子
c*3
12 楼
Unless you are using impact wrench, ordinary bits would serve well 80% of the time. HOWEVER, strongly recommend to get impact wrench and buy impact ready bits. You will soon regret a soft metal bits splits itself and damage the screw that you can't get in nor out. Made in China non-impact bits are worst. Strongly recommend such as this one http://toolguyd.com/blog/wp-content/uploads/2009/11/Dewalt-38pc-Impact-Ready-Bit-Set-300x219.jpg
【在 c****3 的大作中提到】 : Unless you are using impact wrench, ordinary bits would serve well 80% of : the time. : HOWEVER, strongly recommend to get impact wrench and buy impact ready bits. : You will soon regret a soft metal bits splits itself and damage the screw : that you can't get in nor out. Made in China non-impact bits are worst. : Strongly recommend such as this one http://toolguyd.com/blog/wp-content/uploads/2009/11/Dewalt-38pc-Impact-Ready-Bit-Set-300x219.jpg