WWW国产精品内射老熟女,亚洲无码成人综合网,AV美女主播高潮,无码图片二区

瑗垮畨P91鍚堥噾绠″児鏍艰タ瀹塒91鍚堥噾绠″児鏍艰タ瀹塒91鍚堥噾绠″児鏍�

涓昏鐢ㄤ締鍒堕€犻珮澹撳強鍏朵互涓婂鍔涚殑钂告苯閸嬬垚绠￠亾绛夌敤鐨勫劒(y艒u)璩�(zh矛)纰崇礌绲�(ji茅)妲�(g貌u)閶笺€佸悎閲戠祼(ji茅)妲�(g貌u)閶煎拰涓嶉姽鑰愮啽閶奸珮澹撶劇绺墰绠�銆侀€欎簺閸嬬垚绠＄稉(j墨ng)楂樻韩鍜岄珮澹撲笅宸ヤ綔銆佺瀛愬湪楂樻韩?z茅)鐓斿閫€顔緷顛㈡窎楗斿瓱閫烩偓鏈冪櫦(f膩)鐢熸哀鍖栧拰鑵愯潟锛屽洜姝よ姹傞嫾绠℃湁楂樼殑鎸佷箙寮峰害銆侀珮鐨勬姉姘у寲鎬ц兘锛屽苟鍏锋湁鑹ソ鐨勭祫绻旂┅(w臎n)瀹氭€�锛岄珮澹撻崑鐖愮闄や繚璀夊寲瀛�(xu茅)鎴愬垎鍜屾姊版€ц兘澶栵紝瑕侀€愭牴鍋氭按澹撹│椹�锛岃浣滄摯鍙�銆佸鎵佽│椹楋紝楂樺鐒＄斧绠′互鐔辫檿鐞嗙媭鎱�(t脿i)浜よ波銆侴B9948鐒＄斧閶肩涓昏鐢ㄤ締鍒堕€犻珮澹撳強鍏朵互涓婂鍔涚殑钂告苯閸嬬垚绠￠亾绛夌敤鐨勫劒(y艒u)璩�(zh矛)纰崇礌绲�(ji茅)妲�(g貌u)閶笺€佸悎閲戠祼(ji茅)妲�(g貌u)閶煎拰涓嶉姽鑰愮啽閶奸珮澹撶劇绺墰绠�銆�

瑗垮畨P91鍚堥噾绠″児鏍艰タ瀹塒91鍚堥噾绠″児鏍�

閫欎簺閸嬬垚绠＄稉(j墨ng)楂樻韩鍜岄珮澹撲笅宸ヤ綔锛岀瀛愬湪楂樻韩?z茅)鐓斿閫€顔緷顛㈡窎楗斿瓱閫烩偓鏈冪櫦(f膩)鐢熸哀鍖栧拰鑵愯潟锛屽洜姝よ姹傞嫾绠℃湁楂樼殑鎸佷箙寮峰害銆侀珮鐨勬姉姘у寲鎬ц兘锛屽苟鍏锋湁鑹ソ鐨勭祫绻旂┅(w臎n)瀹氭€�锛岄噰鐢ㄩ嫾铏熸湁锛氬劒(y艒u)璩�(zh矛)纰崇礌绲�(ji茅)妲�(g貌u)閶奸嫾铏熸湁20G銆�20MnG銆�25MnG锛涘悎閲戠祼(ji茅)妲�(g貌u)閶奸嫾铏�15MoG銆�20MoG銆�12CrMoG銆�15CrMoG銆�12Cr2MoG銆�12CrMoVG銆�12Cr3MoVSiTiB绛�锛涙湁閵硅€愮啽閶煎父鐢�1Cr18Ni9銆�1Cr18Ni11Nb楂樺閸嬬垚绠￠櫎淇濊瓑鍖栧(xu茅)鎴愬垎鍜屾姊版€ц兘澶栵紝瑕侀€愭牴鍋氭按澹撹│椹�锛岃浣滄摯鍙�銆佸鎵佽│椹�锛岄珮澹撶劇绺浠ョ啽铏曠悊鐙€鎱�(t脿i)浜よ波?锛涚槣W(xu茅)鎴愬垎妾㈤

瑗垮畨P91鍚堥噾绠″児鏍艰タ瀹塒91鍚堥噾绠″児鏍�

(1)GB3087-2008銆婁綆涓閸嬬垚鐢ㄧ劇绺嫾绠°€嬭(gu墨)瀹�?锛涚槣W(xu茅)鎴愬垎瑭﹂鏂规硶鎸塆B222-84鍙奊B223銆婇嫾閻靛強鍚堥噾鍖栧(xu茅)鍒嗘瀽鏂规硶銆嬩腑鐨勬湁闂�(gu膩n)閮ㄥ垎銆�

(2)GB5310-2008銆婇珮澹撻崑鐖愮敤鐒＄斧閶肩銆嬭(gu墨)瀹�銆傚寲瀛�(xu茅)鎴愬垎瑭﹂鏂规硶鎸塆B222-84鍙娿€婇嫾閻靛強鍚堥噾鍖栧(xu茅)鍒嗘瀽鏂规硶銆�銆丟B223銆婇嫾閻靛強鍚堥噾鍖栧(xu茅)鍒嗘瀽鏂规硶銆嬩腑鐨勬湁闂�(gu膩n)閮ㄥ垎銆�

(3)閫插彛閸嬬垚閶肩鐨勫寲瀛�(xu茅)鎴愬垎妾㈤鎸夊悎鍚岃(gu墨)瀹氱殑鏈夐棞(gu膩n)妯�(bi膩o)婧�(zh菙n)閫茶銆�

瑗垮畨P91鍚堥噾绠″児鏍艰タ瀹塒91鍚堥噾绠″児鏍�

5.閸嬬垚绠￠噰鐢ㄩ嫾铏�

(1)鍎�(y艒u)璩�(zh矛)纰崇礌绲�(ji茅)妲�(g貌u)閶奸嫾铏熸湁20G銆�20MnG銆�25MnG銆�

(2)鍚堥噾绲�(ji茅)妲�(g貌u)閶奸嫾铏�15MoG銆�20MoG銆�12CrMoG銆�15CrMoG銆�12Cr2MoG銆�12CrMoVG銆�12Cr3MoVSiTiB绛�銆�

(3)鏈夐姽鑰愮啽閶煎父鐢�1Cr18Ni9銆�1Cr18Ni11Nb閸嬬垚绠￠櫎淇濊瓑鍖栧(xu茅)鎴愬垎鍜屾姊版€ц兘澶�锛岃閫愭牴鍋氭按澹撹│椹�锛岃浣滄摯鍙ｃ€佸鎵佽│椹�銆傞嫾绠′互鐔辫檿鐞嗙媭鎱�(t脿i)浜よ波銆�

姝ゅ锛屽皪鎴愬搧閶肩椤井绲勭箶銆佹櫠绮掑害銆佽劔纰冲堡涔熸湁涓€瀹氳姹�銆�

瑗垮畨P91鍚堥噾绠″児鏍艰タ瀹塒91鍚堥噾绠″児鏍�
瑗垮畨P91鍚堥噾绠″児鏍艰タ瀹塒91鍚堥噾绠″児鏍煎児鏍�

瑗垮畨P91鍚堥噾绠″児鏍艰タ瀹塒91鍚堥噾绠″児鏍�

涓嬩竴绡囷細澶╂按20G鐒＄斧閶肩鍍规牸