日本精品裸体写真集在线观看,亚洲国产免费看,欧美日韩一级视频,国产69精品久久99不卡

q345d無縫鋼管168 26產(chǎn)品質(zhì)量杠杠滴

標(biāo)準(zhǔn)	牌號	C	Si	Mn	P≤	S≤	Ni≤	Cu≤	Cr≤
GB/T8163-1999	10	0.07-0.14	0.17-0.37	0.35-0.65	0.035	0.035	0.25	0.15	0.25
	20	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	0.25	0.25	0.25
	Q295 A	≤0.16	≤0.55	0.80-1.50	0.045	0.045	0.30	0.30	0.30
	Q295 B	≤0.16	≤0.55	0.80-1.50	0.040	0.040	0.30	0.30	0.30
	Q345 A	≤0.20	≤0.55	1.00-1.60	0.045	0.045	0.30	0.30	0.30
	Q345 B	≤0.20	≤0.55	1.00-1.60	0.040	0.040	0.30	0.30	0.30
	Q345 C	≤0.20	≤0.55	1.00-1.60	0.035	0.035	0.30	0.30	0.30
	Q345 D	≤0.18	≤0.55	1.00-1.60	0.030	0.030	0.30	0.30	0.30
	Q345 E	≤0.18	≤0.55	1.00-1.60	0.025	0.025	0.30	0.30	0.30

無縫鋼管現(xiàn)貨

114×6-7-8-10-12-14-18-20

121×6-7-8-10-12-14-16-20

127×-6-7-8-10-12-14-16-20

133×6-8-12-14-16-18-20-25-30

140×6-7-8-9-10-12-14-16-20-22

146×6-8-12-14-16-18-20-25-30

152×6-8-12-14-16-18-20-25-30

159×6-10-12-14

159×16-18-20-22-25-30

168×8-10-12-14-20-25-30-35

180×8-12-16-25-30

180×32-34-38-40

194×6-8-12-16-20-25-30-40

203×6-7-10-15-20-25-30