DUK DTH rawar soja bututu suna gogayya welded, kuma yawanci zaren su ne daidaitattun hanyoyin haɗin API, kamar 2 3/8 ″ API REG thread, 3 1/2 ″ API REG thread ko API IF thread, da dai sauransu bisa ga buƙatar abokan ciniki, daga 1000mm zuwa 5000mm tsawon tubes, OD za mu iya bayar da 50mm, 60mm, 76mm, 89mm, 102mm

Fuka-fukan samfur:

1: Nitriding a kan zaren haɗin gwiwa na sanda don inganta taurin zaren saman da ƙara juriya na zaren.
2: Yin amfani da R780 azaman kayan jikin sanda don haɓaka juriya da ƙarfi, 42 Cr Mo kayan don haɗin zaren.
3: Yana ɗaukar maganin bacin rai don rage nauyin sanda yayin kiyaye ƙarfin walda (kaurindt pipeshine 6.5mm yayin da yankin walda shine 8.5mm).