Haɗa bututun matsakaitan matsa lamba da kayan aiki (300-999 psi) yana buƙatar flanges masu zaren Class 300. Zaren da ke cikin flange sun yi da filaye masu zare, wanda kuma aka sani da screwed flanges, suna haɗe zuwa zaren waje akan bututu ba tare da walda ba. Yawancin lokaci, fuskokin waɗannan flanges suna ɗagawa, lebur, ko RTJ (nau'in haɗin gwiwa). NPT (National Pipe Thread) da BSPT (British Standard Pipe Taper) misalai biyu ne na masu haɗa zaren. Nau'in bakin karfe na chromium-nickel na nau'in 304 bakin karfe yana da juriya ga lalata da danshi, zafi, salinity, acid, ma'adanai, da kasa peaty ke kawowa. Baya ga samun ƙarin nickel fiye da nau'in bakin karfe na 304, nau'in bakin karfe na 316 kuma ya ƙunshi molybdenum don ma mafi kyawun juriya na lalata.
Haɓakawa da samar da bakin karfe zaren flanges na musamman ne na JLPV. Austenitic bakin karfe, duplex karfe, da super duplex karfe su ne kayan farko da kamfanin ke amfani da shi don yin flanges na masana'antu. A halin yanzu, ana samun nasarar sayar da kayayyakin kamfanin a larduna da yankuna fiye da goma na kasar Sin, da suka hada da Hong Kong da Taiwan, da kuma Amurka, da Canada, da Brazil, da Jamus, da Burtaniya, da Faransa, da kuma Gabas ta Tsakiya, don sayar da kayayyakin da suka dace. Matsayin Amurka da Turai. Duk masu amfani na cikin gida da na ƙasashen waje sun haɗu cikin sha'awar ingancin samfurin.
1.NPS:DN15-DN1000, 1/2"-40"
2. Matsakaicin Matsala: CL150-CL2500, PN6-PN420
3.Standard: EN, DIN, JIS, GOST, BS, GB
4.Material:
① Bakin Karfe: 31254, 904/L, 347/H, 317/L, 310S, 309, 316Ti, 321/H, 304/L, 304H, 316/L, 316H
②DP Karfe: UNS S31803, S32205, S32750, S32760
③ Alloy karfe: N04400, N08800, N08810, N08811, N08825, N08020, N08031, N06600, N06625, N08926, N08031, N10276
