Tshwj xeeb hlau
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Tshwj xeeb steel 20 # hexagon 45 # hexagon 16Mn square steel
Raws li cov txheej txheem sib txawv, nws tuaj yeem muab faib ua cov kub dov tshwj xeeb-zoo li cov hlau, txias kos (txias kos) cov hlau tshwj xeeb, txias khoov tshwj xeeb-zoo li tus hlau, welded tshwj xeeb-zoo li tus hlau thiab lwm yam.
