|
|

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?
# g. q) s4 y( ~' Y+ L以下是他们给的技术指导书中关于这个装置的描述:# P2 ^% m+ o, U2 [ K$ s$ P
3.3.8 Hooks and hook blocks* ~; [$ x5 g% ]2 S5 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. K# v3 ?' Q8 S# U/ _
Hook blocks shall be constructed from rolled steel and have close fitting guards.
. ]; Q# }0 l* r' g* Q1 E谢谢大家积极讨论了。 |
评分
-
查看全部评分
|