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русский Muaj ntau txoj hauv kev los txuas cov kav hlau: vuam, zawj clamp kev txuas, flange kev twb kev txuas, hlau txuas, thiab qhov (socket) txuas. Feem ntau hais lus, galvanized steel yeeb nkab yog hais txog galvanized ncaj seam welded yeeb nkab, uas yog dov rau hauv cov yeeb nkab steel nrog galvanized steel thiab welded los ntawm submerged arc vuam. Muaj ib qho welded ntawm cov yeeb nkab phab ntsa, yog li nws yog hu ua welded yeeb nkab. Cov yeeb nkab zoo li no tsis tuaj yeem welded. Vuam yuav rhuav tshem cov txheej galvanized thiab cuam tshuam rau corrosion kuj ntawm cov yeeb nkab steel. Feem ntau threaded kev twb kev txuas, threaded flange kev twb kev txuas, grooved clamp kev twb kev txuas. Lub galvanized seamless steel yeeb nkab tuaj yeem welded. Vim lub siab hardness ntawm seamless steel yeeb nkab, nws yog ib qho nyuaj rau ntswj cov hlau, yog li nws yog feem ntau welded, los yog welded flange kev twb kev txuas, dov zawj clamp kev twb kev txuas.
Txoj kev sib txuas kuj muaj qhov yuav tsum tau ua ntawm cov yeeb nkab txoj kab uas hla. DN15 ~ DN100 yog haum rau threaded kev twb kev txuas, thiab DN65 ~ DN400 los yog loj qauv yog haum rau flange kev twb kev txuas. DN80 ~ DN200 kuj tseem tuaj yeem txuas nrog grooves. Vim tias galvanized steel kav tsis tuaj yeem welded, qhov siab tshaj plaws specification feem ntau yog DN200, thiab DN300 kuj tseem tuaj yeem yuav hauv khw, thiab nws nyuaj rau yuav loj dua qhov loj no.
