hais txog Ib qho kev sib hloov cov plaub hau thiab kev siv lub tshuab
Jan 10, 2020
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hais txog Ib qho kev sib hloov cov plaub hau thiab kev siv lub tshuab
Cov yam ntxwv ntawm kev sib tshooj thiab kev siv lub tshuab: 1. Cov khoom uas muaj cov xov zoo xws li nylon npog xaim lossis galvanized hlau xaim yog ua qauv zoo li ib leeg-siv hlau (tus nab hlau), thiab nws kuj tau khi rau ntawm phau ntawv. 2. Txawv cov txheej txheem txheej txheej tuaj yeem hloov nrog cov pwm sib txawv / cov kab nrig kom ua tiav daim ntawv thiab khi.
