TAG NRHO DTH laum hlab yog kev sib txhuam welded, thiab feem ntau cov xov yog cov qauv API kev sib txuas, xws li 2 3/8 "API REG xov, 3 1/2" API REG xov lossis API IF xov, thiab lwm yam. Raws li cov neeg siv khoom thov, los ntawm 1000mm mus rau 5000mm ntev ntawm cov raj, OD peb tuaj yeem muab 50mm, 60mm, 76mm, 89mm, 102mm

Cov khoom siv:

1: Nitriding ntawm cov xov ntawm cov pas nrig sib koom ua ke los txhim kho qhov nyuaj ntawm cov xov nto thiab ua rau kom hnav tsis kam ntawm xov.
2: Siv R780 raws li cov khoom siv ntawm lub cev pas nrig los txhim kho qhov hnav tsis kam thiab lub zog, 42 Cr Mo cov ntaub ntawv rau xov txuas.
3: Txais kev kho mob siab kom txo qhov hnyav ntawm pas nrig thaum ua kom lub zog ntawm cov welds (lub thickness ntawmdth cevyog 6.5mm thaum welds cheeb tsam yog 8.5mm).