Tuam Tshoj Hoobkas qab nthab recessed linear phab ntsa washer

Recessed asymetric linear teeb yog zoo heev rau phab ntsa washer.

raws li nws yog recessed rau hauv qab nthab, koj yuav tsis pom lub teeb ntawm lub qab nthab.

thiab raws li nws yog asymetric, koj muaj lub luag haujlwm rau phab ntsa ntxhua khaub ncaws.

lub teeb tso zis yog txawm. zoo saib heev.