Xulyan World yuqori sifatli Q235b xom ashyosiga ega bo'lgan BS1139 standart klaffafilding bilan bog'liq barcha turdagi BS1139 standart krandelding uchastkalarini ishlab chiqaradi.
BS 1139 ulamolari ikki baravar sekunder, duber juftligini ikki karra aylantiruvchi, dubern Couper, Ladder Couper, Mushka Couper va boshqalar.
O'tish vaqti: may-09-2021