Kev sim sim ntawm roj hmab Expansion Joint
1 Saib zoo yam khoom ntim Qhov sib txawv: Kev pom zoo zoo yog txiav txim siab pom. Cov lus qhia meej yog ntsuas nrog vernier calipers lossis kaw suab.
2 Qhov ntsuas kub ntawm brittleness ntawm cov khoom siv roj hmab yog ua tiav raws li cov cai ntawm GB / T1682.
3 Kev txiav txim siab ntawm lub zog daim ntawv cog lus ntawm rubber thiab ntaub yog nqa tawm raws li cov cai ntawm GB / T532.
