星辰影视免费在线观看_伊人五月天视频播放_草草影院CCYY国产日本欧美_国产精品无码不卡顿_久热香蕉在线播放_国产一区二区三区高清不卡无码_色一级淫片免费观看_成人另類視頻_一亲二脱三桶视频网站_中文字幕欧美日韩熟女

d| (yng)ƽ_(ti)|(yng)Ո(qng) | English
͜y

һlDJ41YDJ41W͜ؽֹy һlѽ(jng)]

a(chn)Ʒ;

͜yϵҪmϩҺȻȻbϣݔҺB(ti)͜ؽ|(zh)ϩҺҺȡ@|(zh)ȼױؕr(sh)Ҫ?d)⻯⻯r(sh)weÛ(sh)ٱ@Щ|(zh)B͸(qing)й©ӹ^y

a(chn)Ʒc(din)

1ЉIJܳܽ|(zh)ضȵ׃ÛտsܷⲿλĽY(ji)(gu)ڜض׃r(sh)(hu)a(chn)õ׃Ρ-100¹rr(sh)yTھӹǰ(yng)M(jn)̎ҺM(jn)s(dng)ض_(d)-196r(sh)_ʼl-2h.ȻȡȻ̎أ؏(f)ѭh(hun)2

2ywL(zhng)iY(ji)(gu)Ŀıo(h)ϺĹʹϺ̎x͜^h(yun)λCϵܷЧͬr(sh)߀p@ ֹܓpʧL(zhng)iiL(zhng)(H.ҊˆD)ɸ(j)ʹÜضȺͱϵĺȁ(li)xͬL(zhng)ȡ(dng)ܷЧ͕r(sh)ԏϺg(ҊMϽY(ji)(gu))띙(rn)֬γͷϺĉܷܡ

3ʹÜضȵ-100r(sh)yUϽ(jng)^t򵪻̎yUӲܷĿɿ

4͜yзֹY(ji)(gu)ڵ͜yT|(zh)⻯weÛ(hu)(dng)yTǻߕr(sh)yTǻM(jn)ڂ(c)BͨyTM(jn)ڶ˰йyCyTȫʹ

5͜yõĉ|Ƭڳ͜ؠB(ti)ض׃ܿɿܷ͏(f)ԭԡ

ywL(zhng)iL(zhng)ȼ؛

(zh)И(bio)(zhn)

O(sh)Ӌ(j)Ҏ(gu) GB/T1224 API 6D

Bӳߴ磺 GB/T 9113 ASME B16.5

ԇ(yn)cz(yn)GB/T 13927 API 598 API 6D

͜زʹÜضȡ

͜yγߴ硿

͜yҪγߴ煢(dng)y͹̶yyT߶ȳߴA(ch)ϼϼL(zhng)ywĸ߶

•(sh)(j)DƬֻmڅ܅(sh)Y(ji)(gu)ߴ煢(sh)r(ji)ԔՈ(qng)“(lin)ϵ҂Ԓ021-59170722!