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楼主 |
发表于 2007-5-21 17:33:05
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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?% A) @" B, k( p5 ^' {) O
以下是他们给的技术指导书中关于这个装置的描述:
" o9 `1 c5 I1 c8 ?3.3.8 Hooks and hook blocks
2 U; T4 E0 T" Q 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.
# C) a) A( _3 G" S6 d Hook blocks shall be constructed from rolled steel and have close fitting guards.
0 b4 v6 d; t# J# I+ k8 M谢谢大家积极讨论了。 |
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