40 * 40 * 6m Square Tube Delivery- Royal Group 

Niaj hnub no, peb lub tuam txhab ntxiv ib pawg ntawmcov yeeb nkab carbon steel squareua tiav thiab xa khoom, qhov kev txiav txim no yog qhov kev txiav txim tshiab los ntawm peb tus neeg siv khoom qub uas tau koom tes nrog ntau xyoo, nws tau koom tes nrog peb ntau tshaj 3 xyoos, thiab nws txaus siab rau txhua yam khoom uas peb muab, uas kuj yog kev lees paub ntawm peb cov kev pabcuam thiab cov khoom lag luam, ua tsaug rau kev txhawb nqa ntev ntawm cov neeg siv khoom.