diff --git a/src/components/shared/forms/b2b-form.tsx b/src/components/shared/forms/b2b-form.tsx
index f687c13..61b61a3 100644
--- a/src/components/shared/forms/b2b-form.tsx
+++ b/src/components/shared/forms/b2b-form.tsx
@@ -2,12 +2,12 @@ import { AnimatePresence } from "motion/react";
 import { FC, useMemo } from "react";
 import { useForm } from "react-hook-form";
 import { zodResolver } from "@hookform/resolvers/zod";
-import axios from "axios";
 import {
   defaultValuesOfB2b,
   createFormSchema,
   FormType,
 } from "@/lib/get-b2b-form-details";
+import { postB2b } from "@/services/service";
 import { Form } from "@/components/ui/form";
 import { FormSuccesStatus } from "../form-succes-status";
 import { Stage1, Stage2, Stage3 } from "../b2b";
@@ -96,17 +96,9 @@ export const B2bForm: FC<Props> = ({
         }
       });
 
-      const res = await axios.post(
-        "https://turkmentextile.turkmenexpo.com/app/api/v1/form",
-        formData,
-        {
-          headers: {
-            "Content-Type": "multipart/form-data",
-          },
-        }
-      );
+      const success = await postB2b(formData);
 
-      if (res.status === 201) {
+      if (success) {
         setSuccess(true);
       }
     } catch (error) {
diff --git a/src/components/shared/home/home-news.tsx b/src/components/shared/home/home-news.tsx
index 3fb1719..388a77e 100644
--- a/src/components/shared/home/home-news.tsx
+++ b/src/components/shared/home/home-news.tsx
@@ -9,7 +9,7 @@ import { Container } from "@/components/layout";
 export const HomeNews: FC = () => {
   const lang = useLangStore((state) => state.lang);
 
-  const { data, isPending } = useNews(lang);
+  const { data, isPending } = useNews();
 
   if (isPending) return <Loader />;
 
diff --git a/src/hooks/tanstack/use-contacts.ts b/src/hooks/tanstack/use-contacts.ts
index f32aa23..0e1edd4 100644
--- a/src/hooks/tanstack/use-contacts.ts
+++ b/src/hooks/tanstack/use-contacts.ts
@@ -7,7 +7,7 @@ export const useContacts = () => {
 
   const { data, isPending } = useQuery({
     queryKey: ["contacts", lang],
-    queryFn: () => getContacts(lang),
+    queryFn: () => getContacts(),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-designers.ts b/src/hooks/tanstack/use-designers.ts
index fa59145..c1cfe33 100644
--- a/src/hooks/tanstack/use-designers.ts
+++ b/src/hooks/tanstack/use-designers.ts
@@ -7,7 +7,7 @@ export const useDesigners = (id: number) => {
 
   const { data, isPending } = useQuery({
     queryKey: ["designers", lang],
-    queryFn: () => getDesigners(lang, id),
+    queryFn: () => getDesigners(id),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-exhibition-time.ts b/src/hooks/tanstack/use-exhibition-time.ts
index 3ecbccc..d8b3985 100644
--- a/src/hooks/tanstack/use-exhibition-time.ts
+++ b/src/hooks/tanstack/use-exhibition-time.ts
@@ -20,7 +20,7 @@ export const useExhibitionTime = () => {
 
   const { data, isPending } = useQuery({
     queryKey: ["exhibiton-time", lang],
-    queryFn: () => getExhibitionTime(lang),
+    queryFn: () => getExhibitionTime(),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-home-contacts.ts b/src/hooks/tanstack/use-home-contacts.ts
index 02f1c98..ff22c62 100644
--- a/src/hooks/tanstack/use-home-contacts.ts
+++ b/src/hooks/tanstack/use-home-contacts.ts
@@ -7,7 +7,7 @@ export const useHomeContacts = () => {
 
   const { data, isPending } = useQuery({
     queryKey: ["home-contacts", lang],
-    queryFn: () => getHomeContacts(lang),
+    queryFn: () => getHomeContacts(),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-industries.ts b/src/hooks/tanstack/use-industries.ts
index 0389c9a..536fec4 100644
--- a/src/hooks/tanstack/use-industries.ts
+++ b/src/hooks/tanstack/use-industries.ts
@@ -24,7 +24,7 @@ export const useIndustries = () => {
 
   const { data, isPending } = useQuery({
     queryKey: ["industries", lang],
-    queryFn: () => getIndustries(lang),
+    queryFn: () => getIndustries(),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-news-inner.ts b/src/hooks/tanstack/use-news-inner.ts
index 8f91dbe..e8d9dad 100644
--- a/src/hooks/tanstack/use-news-inner.ts
+++ b/src/hooks/tanstack/use-news-inner.ts
@@ -1,10 +1,13 @@
 import { getNewsInner } from "@/services/service";
+import { useLangStore } from "@/store/lang";
 import { useQuery } from "@tanstack/react-query";
 
-export const useNewsInner = (id: number, lang: string) => {
+export const useNewsInner = (id: number) => {
+  const lang = useLangStore((state) => state.lang);
+
   const { data, isPending } = useQuery({
     queryKey: ["news-inner", id, lang],
-    queryFn: () => getNewsInner(id, lang),
+    queryFn: () => getNewsInner(id),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-news.ts b/src/hooks/tanstack/use-news.ts
index 4bd7508..63166b0 100644
--- a/src/hooks/tanstack/use-news.ts
+++ b/src/hooks/tanstack/use-news.ts
@@ -1,10 +1,13 @@
 import { getNews } from "@/services/service";
+import { useLangStore } from "@/store/lang";
 import { useQuery } from "@tanstack/react-query";
 
-export const useNews = (lang: "ru" | "en" | "tm") => {
+export const useNews = () => {
+  const lang = useLangStore((state) => state.lang);
+
   const { data, isPending } = useQuery({
     queryKey: ["news", lang],
-    queryFn: () => getNews(lang),
+    queryFn: () => getNews(),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-participants.ts b/src/hooks/tanstack/use-participants.ts
index 68f22f1..cdb9196 100644
--- a/src/hooks/tanstack/use-participants.ts
+++ b/src/hooks/tanstack/use-participants.ts
@@ -7,7 +7,7 @@ export const useParticipants = () => {
 
   const { data, isPending } = useQuery({
     queryKey: ["participants", lang],
-    queryFn: () => getParticipants(lang),
+    queryFn: () => getParticipants(),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-partners.ts b/src/hooks/tanstack/use-partners.ts
index d30d1ad..d805c98 100644
--- a/src/hooks/tanstack/use-partners.ts
+++ b/src/hooks/tanstack/use-partners.ts
@@ -23,7 +23,7 @@ export const usePartners = () => {
 
   const { data, isPending } = useQuery({
     queryKey: ["partners", lang],
-    queryFn: () => getPartners(lang),
+    queryFn: () => getPartners(),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-sponsors.ts b/src/hooks/tanstack/use-sponsors.ts
index 06e017c..c4eeda1 100644
--- a/src/hooks/tanstack/use-sponsors.ts
+++ b/src/hooks/tanstack/use-sponsors.ts
@@ -7,7 +7,7 @@ export const useSponsors = () => {
 
   const { data, isPending } = useQuery({
     queryKey: ["sponsors", lang],
-    queryFn: () => getSponsors(lang),
+    queryFn: () => getSponsors(),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-static-words.ts b/src/hooks/tanstack/use-static-words.ts
index 115d4a6..925af99 100644
--- a/src/hooks/tanstack/use-static-words.ts
+++ b/src/hooks/tanstack/use-static-words.ts
@@ -37,7 +37,7 @@ export const useStaticWords = (id: string) => {
 
   const { data, isPending } = useQuery({
     queryKey: ["static-words", lang, id],
-    queryFn: () => getStaticWords(lang, id),
+    queryFn: () => getStaticWords(id),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/hooks/tanstack/use-stats.ts b/src/hooks/tanstack/use-stats.ts
index 5cc1e9d..f8d068f 100644
--- a/src/hooks/tanstack/use-stats.ts
+++ b/src/hooks/tanstack/use-stats.ts
@@ -20,7 +20,7 @@ export const useStats = () => {
 
   const { data, isPending } = useQuery({
     queryKey: ["stats", lang],
-    queryFn: () => getStats(lang),
+    queryFn: () => getStats(),
     select: ({ data }) => data.data,
   });
 
diff --git a/src/pages/news-inner.tsx b/src/pages/news-inner.tsx
index 39123bf..bbb2fcb 100644
--- a/src/pages/news-inner.tsx
+++ b/src/pages/news-inner.tsx
@@ -15,8 +15,8 @@ export default function NewsInner() {
   const pageId = Number(id);
   useScrollTop(pageId);
 
-  const { data, isPending } = useNewsInner(pageId, lang);
-  const { data: news } = useNews(lang);
+  const { data, isPending } = useNewsInner(pageId);
+  const { data: news } = useNews();
 
   if (isPending) return <Loader />;
 
diff --git a/src/pages/news.tsx b/src/pages/news.tsx
index 47d1020..d1cf27b 100644
--- a/src/pages/news.tsx
+++ b/src/pages/news.tsx
@@ -11,7 +11,7 @@ export default function News() {
 
   const lang = useLangStore((state) => state.lang);
 
-  const { data, isPending } = useNews(lang);
+  const { data, isPending } = useNews();
 
   if (isPending) return <Loader />;
 
diff --git a/src/services/service.ts b/src/services/service.ts
index 7868062..e4d252c 100644
--- a/src/services/service.ts
+++ b/src/services/service.ts
@@ -3,7 +3,6 @@ import { SponsorFormType } from "@/lib/get-sponsor-form-details";
 import { StandFormType } from "@/lib/get-stend-form-details";
 import axios from "axios";
 import { ContactsPageType } from "./types/contacts.type";
-import { LangState } from "@/store/lang";
 import { StatsType } from "@/hooks/tanstack/use-stats";
 import { HomeContactsType } from "./types/home-contacts.type";
 import { StaticType } from "@/hooks/tanstack/use-static-words";
@@ -15,11 +14,18 @@ import { ParticipantsType } from "./types/participants.type";
 import { PhotoTypes } from "./types/photo.type";
 import { DesignersType } from "./types/designers.type";
 import { VideoTypes } from "./types/videos.type";
+import { useLangStore } from "@/store/lang";
 
 const axios_url = axios.create({
   baseURL: "https://turkmentextile.turkmenexpo.com/app/api/v1/",
 });
 
+axios_url.interceptors.request.use((config) => {
+  const lang = useLangStore.getState().lang;
+  config.headers["Accept-Language"] = lang;
+  return config;
+});
+
 export const postStend = async (data: StandFormType): Promise<boolean> => {
   const res = axios_url.post(`book_stand_form`, data);
 
@@ -50,102 +56,62 @@ export const postSubscribe = async (data: { email: string }) => {
   return (await res).status === 201;
 };
 
-export const getStaticWords = async (lang: LangState["lang"], id: string) => {
-  const data = axios_url.get<StaticType>(`pages/${id}`, {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getStaticWords = async (id: string) => {
+  const data = axios_url.get<StaticType>(`pages/${id}`);
 
   return data;
 };
 
-export const getPartners = async (lang: LangState["lang"]) => {
-  const data = axios_url.get<PartnersType>("partners", {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getPartners = async () => {
+  const data = axios_url.get<PartnersType>("partners");
 
   return data;
 };
 
-export const getStats = async (lang: LangState["lang"]) => {
-  const data = axios_url.get<StatsType>("stats", {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getStats = async () => {
+  const data = axios_url.get<StatsType>("stats");
 
   return data;
 };
 
-export const getContacts = async (lang: LangState["lang"]) => {
-  const data = axios_url.get<ContactsPageType>("contact_info", {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getContacts = async () => {
+  const data = axios_url.get<ContactsPageType>("contact_info");
 
   return data;
 };
 
-export const getHomeContacts = async (lang: LangState["lang"]) => {
-  const data = axios_url.get<HomeContactsType>("contact_data", {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getHomeContacts = async () => {
+  const data = axios_url.get<HomeContactsType>("contact_data");
 
   return data;
 };
 
-export const getIndustries = async (lang: LangState["lang"]) => {
-  const data = axios_url.get<IndustriesType>(`industries`, {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getIndustries = async () => {
+  const data = axios_url.get<IndustriesType>(`industries`);
 
   return data;
 };
 
-export const getExhibitionTime = async (lang: LangState["lang"]) => {
-  const data = axios_url.get<TimeType>(`exhibition_time`, {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getExhibitionTime = async () => {
+  const data = axios_url.get<TimeType>(`exhibition_time`);
 
   return data;
 };
 
-export const getNews = async (lang: "ru" | "en" | "tm") => {
-  const data = axios_url.get<NewsType>(`news?per_page=100`, {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getNews = async () => {
+  const data = axios_url.get<NewsType>(`news?per_page=100`);
 
   return data;
 };
 
-export const getNewsInner = async (id: number, lang: string) => {
-  const data = axios_url.get<NewsInnerType>(`news/${id}`, {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getNewsInner = async (id: number) => {
+  const data = axios_url.get<NewsInnerType>(`news/${id}`);
 
   return data;
 };
 
-export const getParticipants = async (lang: LangState["lang"]) => {
-  const data = axios_url<ParticipantsType>("participants", {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getParticipants = async () => {
+  const data = axios_url<ParticipantsType>("participants");
 
   return data;
 };
@@ -162,22 +128,14 @@ export const getVideos = async (id: number) => {
   return data;
 };
 
-export const getSponsors = async (lang: LangState["lang"]) => {
-  const data = axios_url<PartnersType>("sponsors_and_partners", {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getSponsors = async () => {
+  const data = axios_url<PartnersType>("sponsors_and_partners");
 
   return data;
 };
 
-export const getDesigners = async (lang: LangState["lang"], id: number) => {
-  const data = axios_url<DesignersType>("designers/category/" + id, {
-    headers: {
-      "Accept-Language": lang,
-    },
-  });
+export const getDesigners = async (id: number) => {
+  const data = axios_url<DesignersType>("designers/category/" + id);
 
   return data;
 };