ʻO sanonpipe kahi mea hoʻolako ʻoihana a mea hana i nā papahana paipu kila maʻemaʻe ma Kina. ʻO kāna mau huahana nuipaipu paila, paipu aila, paipu mechanical, fertilizer a me nā paipu kemika, apaipu kila maʻemaʻe. ʻO nā mea nui:SA106B, 20 g, Q345, 12 Cr1MoVG, 15 CrMoG, Cr5Mo, 1 Cr9Mo, 10 CrMo910,A335P5/ P9 / P11 / P12 / P22 / P91 / P92