|
|

楼主 |
发表于 2007-5-21 17:33:05
|
显示全部楼层
来自: 中国上海
谢谢cdxwg.最好有这种装置的图纸或者照片。还有,如果能够说服业主,这个是不需要的?1 M; x0 T+ v" B% n
以下是他们给的技术指导书中关于这个装置的描述:
; {, N9 V: U2 }' S ]1 V3.3.8 Hooks and hook blocks
4 ?, w* t% y, a4 |3 [* u The hooks shall be made of forged steel and shall swivel on antifrication bearings arranged to exclude dirt and equipped for lubrication. Hook shall have a locking device which, when engaged,will lock the hook in the desired orientation.
8 V m" V. G" C! ]; N Hook blocks shall be constructed from rolled steel and have close fitting guards.
! J! ?1 j; _' u* m F$ k. N3 u谢谢大家积极讨论了。 |
评分
-
查看全部评分
|